6 Inch Lift Kit | Diesel | 4-link | Fr D/s | C/o V2 | Ford F-250/f-350 Super Duty (17-22)

Built for diesel Super Duty owners who want a commanding 6-inch lift with coil-over adjustability and factory-correct geometry, this 4-Link Coilover Conversion Lift Kit replaces your factory independent coil setup with a fully adjustable suspension platform. You gain ride-height tuning, improved dampening through massive 2.5-inch Vertex Coilovers, and a level stance front-to-rear — all while maintaining proper caster geometry and handling.

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

• 56020 Box Kit — Houses the coil-over mounts and top-mounted reservoir brackets, fabricated from 1/4-inch steel for durability.
• 4.5–6" Upper and Lower Arm Kit — Fixed upper control arms and adjustable lower arms replace factory geometry for a 4-Link setup.
• Radius Arm Drop Brackets — Maintain proper caster angle and allow fine-tuning to preserve factory handling and driveability.
• 6" Fabricated Lift Block — Replaces the factory lift block; stronger and longer-lasting than cast alternatives.
• Anti-Axle Wrap Rear Blocks — Specially designed to eliminate lift-block sag and maintain stock ride quality.
• CV Front Drive Shaft (Diesel) — Updated shaft for the 6-inch lift geometry.
• Vertex 2.5" Monotube Coil-Overs (Pair) — Nitrogen-charged, 8-stage adjustable shocks with external reservoirs; 56% greater fluid capacity than typical reservoir shocks for superior dampening control.
• U-Bolt Kits — Hardware to secure blocks and suspension components.

Important notes

• Diesel engine only — does not fit gas Super Duty models.
• 4WD only — not compatible with 2WD or dually configurations.
• Automatic transmission required — does not fit manual shift transfer cases.
• 10-speed transmission models must have the dial pin removed during installation.
• Not compatible with the Tremor Factory Trim Package.
• Installation requires cutting and drilling; plan 6–10 hours for full completion.

Why customers pick this at Road Runner

• Radius arm drop brackets correct caster geometry — your truck handles like stock, not like a lifted truck.
• Rough Country lifetime warranty backed locally — we stand behind every install.
• Vertex 2.5" coil-overs ship ready to bolt in — no choosing shocks from a menu, no guesswork on valving.
• Professional installation by techs who spec these kits every week — cutting, drilling, and alignment done right.
• Alignment performed in-house as part of every lift install — caster is set by the pros, not left to chance.

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