The Bilstein B8 5100 Series Shock Absorber (24-251778) is a gas-pressurized, monotube shock designed specifically for lifted light trucks and SUVs. Featuring a 46mm digressive piston with a self-adjusting deflective disc valving, it provides superior control and stability on and off-road. Its high-pressure nitrogen gas technology ensures fade-free performance even under heavy loads or towing. This product is a single unit; for a complete axle replacement, please order two. Note: NOT compatible with vehicles equipped with MagneRide (Electronic Suspension). Components included: - 1 x Bilstein B8 5100 Rear Shock Absorber (PN: 24-251778) - 1 x High-durability Dust Boot (Black) - 1 x Set of installation bushings and washers.