Fabtech Dirt Logic 4.0 front driver-side reservoir coilover for 2011–2016 Ford F‑250/F‑350 4WD diesel is a bolt‑on 4.0-inch lift conversion built to improve damping for offroad use. It uses stainless steel construction and a NitroSteel piston rod for corrosion resistance and is offered as part of Fabtech's system that includes vehicle-specific components, bolt-on installation and a 5‑year/60,000‑mile warranty.
Fabtech 11-16 Ford F250/350 4WD Diesel 4in Front Dirt Logic 4.0 Reservoir Coilover - Driver