Product Details: The Bilstein 33-185552 B8 5125 Series 46mm Monotube Shock Absorber is engineered to enhance the suspension performance of Toyota Land Cruiser models from 1961 to 1983. Designed for the rear position, this shock absorber offers a direct-fit solution for vehicles with a 4-inch rear lift, particularly those with the FJ40 body code. Its monotube gas pressure design ensures consistent, fade-free performance, effectively managing heat dissipation and providing superior damping sensitivity. The shock absorber features a 46mm piston with self-adjusting deflective disc valving, allowing for independent rebound and compression tuning to accommodate various driving conditions. The zinc-plated finish offers exceptional durability, protecting against corrosion and extending the service life of the component. Installation is straightforward, utilizing standard 5/8-inch hourglass bushings and an eye-to-eye mount configuration, eliminating the need for modifications. This product is backed by a limited 90-day warranty, underscoring Bilstein's commitment to quality and reliability.