Arnott is pleased to offer this front premium shock SK-3062 for 2000-2006 GM SUVs(GMT800), 1999-2007 Trucks equipped with Autoride (Z55 RPO). Pro-Truck shocks use a high pressure 46mm monotube design that resists fade through even the toughest terrain. The replacement shock fits the front left or right side and delivers enhanced stability, tight damping response and excellent vehicle control and comfort. Driving a vehicle equipped with these shock absorbers is an exhilarating experience. Arnott includes a sensor which plugs into the auto-damping system to eliminate dash panel error messages. THIS PART SHOULD BE REPLACED IN PAIRS.