AS-3285 is a new, Arnott engineered, aftermarket air suspension shock for the rear of the 2011-20 Infinity QX56/QX80 (Z62) and the 2017-2020 Nissan Armada. This new assembly is built with premium components tuned to ride like the OE, including a multi-ply air sleeve, long-lasting O-rings and bump stop, and heavy-duty crimping rings. This universal shock, which fits both the left and right side, is designed and assembled in the USA.