Bilstein B8 5100 Series 46mm Monotube Shock Absorber. Designed specifically for lifted pickups and SUVs, these high-pressure gas shocks feature a monotube design for consistent, fade-free performance. The specialized valving and 46mm piston offer improved handling and stability on and off the road. Installation Note: This is an individual shock absorber. For a complete front set, order 2 units of part number 24-185943. Compatible with vehicle lifts of 0-2 inches. Package includes 1 shock absorber, required bushings, and mounting hardware.