6 Inch Lift Kit | 4-link | No Ovld | D/s | C/o Vertex | Ford F-250/f-350 Super Duty (17-22)

Built for diesel Super Duty owners who want maximum ride quality and adjustability in a serious 6-inch lift, this 4-Link Coilover Conversion Kit replaces your factory independent coil setup with a full 2.5-inch piston Vertex coilover system. You gain 6 inches of ground clearance, driveline geometry correction through radius arm drop brackets, and the ability to fine-tune suspension damping across eight stages — all while maintaining factory handling and driveability.

Installed and serviced at Road Runner Wheels & Tires. Most lift kits go in the same day. Call (678) 400-6467 to schedule.

What's included

• Box Kit (Ford Super Duty 17–22) — mounting brackets and hardware for the coilover conversion platform.
• Upper Arm Kit (4.5–6 in) — fixed upper control arms engineered to work with the coilover setup.
• Lower Arms (4.5–6 in) — adjustable lower control arms for geometry tuning and caster correction.
• Lift Block Kit (4.5 in, no overloads) — fabricated steel blocks stronger and longer-lasting than cast alternatives.
• Coilover Conversion Kit Box (6 in) — top-mounted reservoir brackets and coil-over mounts from 1/4-inch steel.
• Front CV Drive Shaft (diesel) — replaces the factory shaft to maintain proper angles and driveline integrity.
• Vertex 2.5 Adjustable Front Coilovers (left and right, 4.5–6 in) — monotube design with external reservoir, 56% greater fluid capacity than average shocks, eight-stage damping adjustment.
• Vertex 2.5 Rear Coilovers (6 in, pair) — anti-axle wrap blocks maintain stock ride quality and eliminate common lift block problems.
• Radius Arm Drop Brackets — preserve proper caster geometry for factory handling and braking response.

Important notes

• Diesel engine only — does not fit gas-powered Super Duty models.
• 4WD only — not compatible with 2WD configurations.
• Does not fit dually models.
• Does not fit manual shift transfer cases.
• Does not work with Tremor Factory Trim Package.
• Models equipped with 10-speed transmission require dial-pin removal during installation.
• Installation requires cutting and drilling; 6–10 hours recommended.
• New fabricated lift block replaces the factory-equipped block.

Why customers pick this at Road Runner

• Vertex 2.5-inch piston coilovers deliver eight-stage damping adjustment — dial in your ride on the fly.
• Radius arm drop brackets correct caster automatically, preserving factory steering feel and brake modulation.
• Rough Country limited lifetime warranty backed locally — structural and workmanship coverage from day one.
• Professionally installed by technicians who perform these conversions every week, ensuring proper geometry and alignment.
• Alignment performed in-house as part of the complete lift install — no second trip needed.

Ready to build it? Call (678) 400-6467. Hablamos Español.