The Bilstein B4 Series 19-266954 Rear Dampers are designed to restore the original performance and handling of your vehicle. Specifically engineered for the GM Lambda platform, these twin-tube gas pressure shock absorbers provide constant damping power under any load. This OE replacement part ensures a smooth, factory-new ride quality and superior safety. Item Contents: 1x Rear Shock Absorber (19-266954). Installation requiresreuse of original mounting hardware. Sold individually.