FOX Performance Series 2.0 Coil-Over Snap Ring IFP Shock # 985-62-013 is designed to fit 2021, 2022 and 2023 Ford F150 4x4 trucks. Sorry, this shock is NOT designed for rear wheel drive only models. This bolt-on solution is loaded with a long list of features that set it apart. This includes a new custom-molded spring seat, allowing you to reuse your stock spring and mounting hardware, while providing excellent on- and off-road performance at an affordable price point. The precision, impact-extruded aluminum body is lightweight and rust resistant. Inside the shock is an internal nitrogen-charged gas reservoir, contained by an internal floating piston (IFP) which separates the charged gas from the shock oil. The IFP eliminates oil from mixing with the nitrogen as is possible with the stock twin tube shocks, allowing maximum performance from the factory-tuned precision valving. Three predetermined preload settings allow a choice of 0”, 1” or 2” of lift.
