The Bilstein B8 5100 (Ride Height Adjustable) shock absorber is designed for trucks and SUVs with a front OE coilover style suspension. Multiple snap-ring grooves in the body allow for different spring seat positions, providing 0-2 inches of front lift with OE springs (depending on application). These monotube shocks feature a 46mm digressive piston with a self-adjusting deflective disc valve setting. This specific model is engineered specifically for vehicles factory-equipped with a 2-inch lift, such as the Silverado Trail Boss and GMC Sierra AT4. The package includes: 1x Shock Absorber (24-337069), 1x Zinc Finish Body Hardware Kit. Installation Note: Reuses factory coil spring and mounting hardware.