The Bilstein B6 4600 Series is designed as a direct fit upgrade to OE shock absorbers on stock height light trucks and SUVs. These shock absorbers feature a monotube design which provides consistent fade-free performance. Bilstein 4600 shock absorbers utilize a unique, velocity-sensitive, digressive piston which reacts to changing road conditions. All 4600 shock absorbers are tuned for each specific application to ensure optimal performance is achieved. Bilstein 4600 shock absorbers offer a significant improvement in ride quality, handling, and comfort. Package contents (Single Unit): - 1x Shock Absorber: 24-185387 (46mm Monotube) - 1x Hardware Kit (Mounting bushings and nuts)