6-Inch Lift Kit with N3 Shocks for Ford Super Duty 4WD (2017–2022) with Front CV Drive Shaft

6-Inch Lift Kit with N3 Shocks, fitment-checked

Rough Country 51721 is a 6-inch lift kit for diesel 2017–2022 Ford F-250 and F-350 Super Duty 4WD trucks, from XL up through Limited. Gas-engine trucks, dually axles, manual-shift transfer cases, trucks with a 3.5 in rear axle tube, and the Tremor factory trim package are all outside the fitment; the truck must have the factory contact overload springs at the rear.

This 6-inch lift kit for the 2017–2022 Ford F-250/F-350 Super Duty 4WD builds the front with a coil package and radius arm drop brackets that let caster be reset to spec, so steering feel stays close to factory. The rear rides on fabricated anti-axle-wrap blocks with a 6.5 in block U-bolt kit, and an N3 shock kit is valved for the application front and rear. A front CV drive shaft for diesel F-250/F-350 4WD is part of the box. Confirm engine, axle, transfer case, and overload-spring configuration first, then work from the downloadable Rough Country installation guide.