6-Inch Lift Kit with Vertex Coilovers for Super Duty 4WD (2017–2022), Part 51356

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

Rough Country 51356 is a 6-inch lift kit for 2017–2022 Ford F-250 and F-350 Super Duty 4WD trucks, built around a coilover conversion with Vertex 2.5 adjustable front units and a V2 monotube shock pair. It does not fit gas engine models, dually models, manual shift transfer cases, or trucks with the Tremor Factory Trim Package, and it requires rear factory contact overload springs.

This 6-inch lift kit for the 2017–2022 Ford F-250 and F-350 Super Duty 4WD covers XL, XLT, Lariat, King Ranch, Platinum, and Limited trims. The box carries left and right Vertex 2.5 adjustable front coilovers rated for the 4.5-to-6-inch range, a V2 monotube shock pair for the rear, a transfer case clocking kit, a 4.5-inch rear block and U-bolt package, and a universal U-bolt kit. Fabricated rear blocks are shaped to resist axle wrap. Check the engine, axle, transfer case, and trim exclusions against your truck before ordering, then work from the downloadable installation guide.