The Bilstein B8 5100 Series 33-104652 is a high-performance 46mm monotube gas pressure shock absorber designed specifically for lifted trucks and SUVs. This shock features a patented digressive valving system that instantly reacts to changing surface conditions for maximum comfort and control. The zinc-plated finish ensures durability against harsh environments. This product is a single shock absorber designed for rear axle fitment on vehicles with 4 inches of lift. Package contents include: 1x Shock Absorber (33-104652), 1x Black Bellows/Dust Boot, and required mounting bushings.