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

Built for diesel F-250 and F-350 Super Duty owners who want 6 inches of lift without sacrificing factory handling, this Rough Country 4-Link lift kit replaces your factory control arms with a fixed upper and adjustable lower setup, correcting suspension geometry while supporting 35"–37" tires. The integrated radius arm drop brackets maintain proper caster — critical for preserving steering feel and driveability on highway and trail.

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

• 4.5–6 in Upper & Lower Arm Kits — Fixed upper arms and adjustable lower control arms engineered to replace factory geometry and improve suspension travel.
• Radius Arm Drop Brackets — Allow proper caster alignment to maintain factory handling and steering response.
• Vertex 2.5 Front & Rear Shocks (qty 4) — Nitrogen-charged N3 series absorbers tuned for balanced on- and off-road performance.
• Fabricated Anti-Wrap Rear Lift Blocks — Stronger than cast blocks; specially designed geometry eliminates axle wrap while preserving ride quality.
• 6.5 in Block U-Bolt & Universal U-Bolt Kits — Hardware to secure blocks to the axle housing.
• CV Front Driveshaft — Accommodates the increased suspension angle and lift height.
• Stainless Steel Extended Brake Lines & Brackets — Ensure brake function at full articulation.
• 6 Inch Coil Box — Houses lifted coil springs for the front end.

Important notes

• Diesel engines only — Does not fit gas-powered F-250 or F-350 models.
• 4WD required — Does not fit manual shift transfer case vehicles.
• Not compatible with dually configurations or vehicles equipped with a 3.5" rear axle tube.
• Factory contact overload springs required — Must be present on your truck for proper fitment.
• Tremor Factory Trim Package incompatible — This kit does not work with trucks equipped with that factory trim option.
• Lift block replacement — The new fabricated block replaces your factory-equipped block.

Why customers pick this at Road Runner

• Radius arm drop brackets maintain factory caster geometry — steering and highway manners stay predictable even after the lift.
• Rough Country lifetime warranty backed by local service — if anything fails, we replace it for life.
• Professional installation by technicians who perform these kits weekly — no guesswork, no comebacks.
• Alignment performed in-house as part of every lift install — caster, camber, and toe dialed in before you drive home.
• All brake lines, driveshaft, and hardware included — nothing left to hunt down at the parts counter.

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