The Bilstein 24-021364 B6 4600 Series shock absorbers are designed as a direct fit upgrade for RWD Chevrolet Astro and GMC Safari vans. These monotube gas pressure shocks provide consistent, fade-free performance even under heavy loads or towing conditions. The 46mm piston design offers superior control and comfort compared to standard twin-tube shocks. Package Contents: - 1 x Bilstein B6 4600 Monotube Shock Absorber (Part No: 24-021364) - 1 x Upper Mounting Hardware Kit (Bushings, Washers, and Nut) Key Features: - Monotube gas pressure technology for instant response. - Improved handling, stability, and load-carrying capacity. - Zinc-plated finish for durability and corrosion resistance. - High-flow piston reduces harshness on uneven roads.