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

Built for fourth-generation Ford Super Duty owners who want superior ride quality and aggressive ground clearance, this 6-inch 4-Link Coilover Conversion Lift Kit replaces your factory independent coil-shock setup with Rough Country's durable Vertex Coilovers — delivering both adjustable ride height and the handling geometry you need to keep your truck performing like stock. You'll fit 35" to 37" tires comfortably while maintaining proper caster angles for factory-level drivability.

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

• 6.5 In Block U-Bolt Kit — Heavy-duty fastening system engineered for the rear block installation.
• Box Kit — Structural foundation that supports the coilover conversion mounting points.
• 4.5–6in Up Arm Kit — Fixed upper arms that replace the factory setup and maintain suspension geometry.
• 4.5–6in Lower Arms — Adjustable lower control arms that allow fine-tuning of caster and camber angles.
• 6" Coilover Conversion Box — Mounting frame for the Vertex Coilovers, engineered to accept the new shock package.
• CV Drive Shaft (Front, Diesel) — Factory-replacement driveshaft accommodating the lifted geometry without binding or vibration.
• Vertex 2.5 Adjustable Front Coilovers (Left & Right) — Monotube shocks with 2.5-inch pistons, nitrogen-charged, 8-stage adjustable damping, and external reservoirs for 56% greater fluid capacity than standard reservoir shocks.
• Vertex 2.5 Rear Coilovers (Pair) — Matching rear units with the same advanced damping and monotube construction.

Important notes

• 10-speed transmission models require dial-pin removal during installation.
• Gasoline-engine models are not compatible — diesel engines only.
• Manual shift transfer cases are not supported.
• Dual-rear-wheel (dually) configurations are not compatible.
• Does not fit vehicles equipped with the Tremor Factory Trim Package.
• Installation requires cutting and drilling; plan for 6–10 hours of labor. Professional installation at Road Runner ensures proper geometry, caster angles, and in-house alignment as part of the service.

Why customers pick this at Road Runner

• Radius arm drop brackets set proper caster angles — maintaining factory handling and driveability after the lift.
• Vertex Coilovers are 8-stage adjustable — fine-tune your ride on the fly without swapping shocks.
• Rough Country's limited lifetime replacement warranty covers structural and workmanship defects, backed by our local service team.
• Fabricated lift blocks outlast cast alternatives and eliminate common block-related ride-quality issues.
• Professional installation and in-house alignment performed as part of every kit install at Road Runner.

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