The Bilstein B8 5160 Series shock absorber is designed as a direct-fit remote reservoir solution for lifted trucks and SUVs. The remote reservoir provides increased oil capacity and enhanced cooling, making it ideal for harsh off-road conditions and heavy hauling. It features a monotube design for consistent, fade-free performance and utilizes velocity-sensitive digressive valving that reacts instantly to changing road conditions. This specific model is tuned for the rear axle of 2019-2022 Chevrolet Silverado and GMC Sierra 1500 models. The package includes: 1x Rear Shock Absorber (Part No. 25-316957), 1x Reservoir Mounting Clamp, and all necessary mounting hardware. Note: Sold individually, two units required per vehicle.