6-Inch Lift Kit with Vertex Coilovers for Ford Super Duty 4WD, Part 51757

6-Inch Lift Kit with Vertex Coilovers, fitment-checked

Rough Country 51757 is a 6-inch lift kit for 2017–2022 Ford F-250 and F-350 Super Duty 4WD models, built around adjustable Vertex 2.5 front coilovers and a pair of Vertex 2.5 rear shocks. It fits only trucks with rear factory contact overload springs, and it rules out gas-engine, dually, manual-shift transfer case, and Tremor Factory Trim Package trucks.

This 6-inch lift kit for the 2017–2022 Ford F-250/F-350 Super Duty 4WD covers XL, XLT, Lariat, King Ranch, Platinum, and Limited trims listed in the fitment section. The box carries left- and right-hand Vertex 2.5 adjustable front coilovers, two Vertex 2.5 rear shocks, a transfer case clocking kit, a 6.5-inch fabricated rear block and U-bolt package, and universal U-bolts. Radius arm drop brackets reset caster so steering feel stays close to factory, and the rear blocks are shaped to resist axle wrap. Confirm your engine, rear spring, and transfer case configuration first, then work from the downloadable installation guide.