Fabtech Dirt Logic 4.0 front driver-side reservoir coilover for 2017–2020 Ford F‑250/F‑350 4WD diesel is a bolt‑on 4.0-inch lift conversion that upgrades damping for off‑road and heavy-duty use. Constructed with a stainless steel body and NitroSteel piston rod for corrosion resistance, the system pairs with Fabtech suspension components and carries a 5‑year/60,000‑mile warranty for supported durability.
Fabtech 17-20 Ford F250/350 4WD Diesel 4in Front Dirt Logic 4.0 Reservoir Coilover - Driver