The Bilstein B8 5100 (Ride Height Adjustable) shock absorber is designed for Ford Bronco 4-Door owners who want improved handling and versatility. These monotube shocks feature multiple snap-ring grooves in the body, allowing for different spring seat positions to provide 0-2.4 inches of front lift depending on the application. They are specifically engineered for vehicles with a front coilover-style suspension. By increasing the suspension travel and improving damping control, the B8 5100 provides a more stable and comfortable ride both on and off-road. High-pressure nitrogen gas technology ensures fade-free performance under load. Note: This product is sold as a single unit (1 shock absorber). For a complete front axle set, two units (Ref: 24-313971) are required. Key features: 46mm monotube design, zinc plated finish, and direct bolt-on fitment.