Developed from our off-road race shocks, FOX Performance Elite Series combines race-proven technology with new, cutting-edge features to provide enhanced ride-quality and winning damping performance you can bolt onto your truck or SUV. Vehicle-specific valving to maximize performance Expand your vehicle*s capability with an oversized performance shock that increases strength, provides control and extended wheel travel specifically engineered for your vehicle. The larger aluminum body dissipates heat more efficiently and the increased internal oil volume allows for more control through FOX*s race-developed high-flow pistons._x000D_ _x000D_ Conquer more terrain knowing with our 7/8* hard chromed shock shaft and a redundant seal pack, designed for harsh environments and extreme conditions. Fully serviceable for a lifetime of use._x000D_ _x000D_ Confidence comes with control. FOX Performance Elite shocks offer the widest range of adjustability we offer. Easily adjust your shock for terrain, load and speed to stay in control and confident no matter what path you take. Ford F-250 Super Duty: 2017-2023; Ford F-350 Super Duty: 2017-2023