The Bilstein 24-218023 (B8 5100 Series) is a high-performance 46mm monotube shock absorber specifically designed for lifted Chevy Silverado and GMC Sierra 1500 trucks. These shocks feature a gas-pressure zinc-plated body and are engineered to handle off-road conditions while maintaining superior on-road comfort. This specific model is intended for the front axle and provides multiple snap-ring grooves in the body to allow for different spring seat positions, providing 0-1.85 inches of front lift. This is a single shock absorber unit (Art: 24-218023). If purchasing as a kit, for a complete front axle set, two units are required.