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Gear Oil for GMC K2500 1999 (3 results)
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Engine Base
Position

IMAGE COMING SOONSKU: 1161-WP-2499210-ENS
Position: Rear Differential, Front Differential
Engine Base: V8 6.5L, V8 5.7L, V8 7.4L
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- , 12.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. GMT800 Platform
- , 8.6 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. In cold climates when excessive shift effort is required to shift into 4WD GM P/N 12345836 may be used in front differential. Front Axle
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 11.0 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 12.0 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.6 Inch Rear Axle Ring Gear, GMT400 Platform
- , 11.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT800 Platform
Fitment Guaranteed for undefined
Position: Rear Differential, Front Differential
Engine Base: V8 6.5L, V8 5.7L, V8 7.4L
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- , 12.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. GMT800 Platform
- , 8.6 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. In cold climates when excessive shift effort is required to shift into 4WD GM P/N 12345836 may be used in front differential. Front Axle
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 11.0 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 12.0 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.6 Inch Rear Axle Ring Gear, GMT400 Platform
- , 11.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT800 Platform
Please call for price
Service Selection
Not available

IMAGE COMING SOONSKU: 1161-WP-329348-RED
Position: Rear Differential, Front Differential
Engine Base: V8 5.7L, V8 6.5L, V8 7.4L
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.6 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. In cold climates when excessive shift effort is required to shift into 4WD GM P/N 12345836 may be used in front differential. Front Axle
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 12.0 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. GMT800 Platform
- , 8.6 Inch Rear Axle Ring Gear
- , 11.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 11.0 Inch Rear Axle Ring Gear, GMT400 Platform
- , 12.0 Inch Rear Axle Ring Gear
Fitment Guaranteed for undefined
Position: Rear Differential, Front Differential
Engine Base: V8 5.7L, V8 6.5L, V8 7.4L
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.6 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. In cold climates when excessive shift effort is required to shift into 4WD GM P/N 12345836 may be used in front differential. Front Axle
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 12.0 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. GMT800 Platform
- , 8.6 Inch Rear Axle Ring Gear
- , 11.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 11.0 Inch Rear Axle Ring Gear, GMT400 Platform
- , 12.0 Inch Rear Axle Ring Gear
Please call for price
Service Selection
Not available

IMAGE COMING SOONSKU: 1161-WP-399573-ENS
Position: Rear Differential, Front Differential
Engine Base: V8 5.7L, V8 7.4L, V8 6.5L
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.6 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. GMT800 Platform
- , 12.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 12.0 Inch Rear Axle Ring Gear, GMT400 Platform
- , 11.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 11.0 Inch Rear Axle Ring Gear, GMT400 Platform
- , 8.6 Inch Rear Axle Ring Gear
- All Temps. In cold climates when excessive shift effort is required to shift into 4WD GM P/N 12345836 may be used in front differential. Front Axle
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT400 Platform
Fitment Guaranteed for undefined
Position: Rear Differential, Front Differential
Engine Base: V8 5.7L, V8 7.4L, V8 6.5L
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.6 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. GMT800 Platform
- , 12.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 12.0 Inch Rear Axle Ring Gear, GMT400 Platform
- , 11.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 11.0 Inch Rear Axle Ring Gear, GMT400 Platform
- , 8.6 Inch Rear Axle Ring Gear
- All Temps. In cold climates when excessive shift effort is required to shift into 4WD GM P/N 12345836 may be used in front differential. Front Axle
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT400 Platform
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Service Selection
Not available

SKU: 1161-WP-2499210-ENS
AutoParts Inc (WP2499210ENS)
Fitment Guaranteed for
Position: Rear Differential, Front Differential
Engine Base: V8 6.5L, V8 5.7L, V8 7.4L
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- , 12.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. GMT800 Platform
- , 8.6 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. In cold climates when excessive shift effort is required to shift into 4WD GM P/N 12345836 may be used in front differential. Front Axle
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 11.0 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 12.0 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.6 Inch Rear Axle Ring Gear, GMT400 Platform
- , 11.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT800 Platform
Service Selection
Not available

SKU: 1161-WP-329348-RED
AutoParts Inc (WP329348RED)
Fitment Guaranteed for
Position: Rear Differential, Front Differential
Engine Base: V8 5.7L, V8 6.5L, V8 7.4L
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.6 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. In cold climates when excessive shift effort is required to shift into 4WD GM P/N 12345836 may be used in front differential. Front Axle
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 12.0 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. GMT800 Platform
- , 8.6 Inch Rear Axle Ring Gear
- , 11.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 11.0 Inch Rear Axle Ring Gear, GMT400 Platform
- , 12.0 Inch Rear Axle Ring Gear
Service Selection
Not available

SKU: 1161-WP-399573-ENS
AutoParts Inc (WP399573ENS)
Fitment Guaranteed for
Position: Rear Differential, Front Differential
Engine Base: V8 5.7L, V8 7.4L, V8 6.5L
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.6 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. Dana Rear Axle, 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. GMT800 Platform
- , 12.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 8.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 12.0 Inch Rear Axle Ring Gear, GMT400 Platform
- , 11.0 Inch Rear Axle Ring Gear
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 11.0 Inch Rear Axle Ring Gear, GMT400 Platform
- , 8.6 Inch Rear Axle Ring Gear
- All Temps. In cold climates when excessive shift effort is required to shift into 4WD GM P/N 12345836 may be used in front differential. Front Axle
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.5 Inch Rear Axle Ring Gear, GMT800 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 10.5 Inch Rear Axle Ring Gear, GMT400 Platform
- All Temps. Do not use synthetic lubricant in axles using RTV sealant. American Axle has only approved the use of Synthetic GM P/N 12378261 as follows: All 8.6'' rear axles.All 9.5'' rear axles built before mid-FEB 1998 are not compatible, after mid-FEB 1998 are compatible.All 10.5 inch rear axles built prior to March 3, 1999 are compatible if axle shaft hub RTV sealer is replaced GM gasket P/N 327739. 9.75 Inch Rear Axle Ring Gear, GMT400 Platform
Service Selection
Not available