The Bilstein B6 4600 Series (33-253183) shock absorber is designed as a direct fit upgrade for the rear of 2015-2020 Ford F-150 trucks. Featuring a 46mm monotube gas-pressurized design, it provides consistent, fade-free performance by reacting instantly to changing road conditions. Whether for daily commuting or heavy hauling, this shock improves stability and handling without sacrificing ride comfort. Note: This is an individual shock absorber (1 unit). Included parts: 1x Shock Absorber (33-253183), 1x Nut/Hardware Kit.