Transform your fourth-gen Ford Super Duty with Rough Country's 6-inch Radius Arm Coilover Conversion Lift Kit, engineered for massive clearance and a factory-smooth ride. This beastly setup ditches the stock coil and shock for a nitrogen-charged, 8-stage adjustable Vertex Coilover with a 2.5-inch piston, while ultra-durable 27lb radius arms with rubber bushings soak up vibrations. It levels your stance, clears up to 37-inch tires, and comes with fabricated anti-axle wrap rear blocks for a longer lifespan than cast blocks. Backed by a Limited Lifetime Replacement Warranty, this kit is a total suspension overhaul you can bolt on at home in 6-10 hours.