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

Built for diesel Super Duty owners who want true 4-Link geometry with coilover adjustability and superior ride quality, this 6-inch lift kit replaces your factory independent coil setup with a complete 4-Link conversion featuring dual Vertex 2.5-inch monotube coilovers. You'll gain increased ground clearance, proper caster correction via radius arm drop brackets, and the ability to dial in ride height and dampening — all while maintaining factory handling characteristics.

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 — Secures rear suspension blocks to the axle housing.
• Box Kit — Fabricated steel mounting brackets for the coilover conversion system.
• 4.5–6in Up Arm Kit — Fixed upper control arms engineered for geometry correction.
• 4.5–6in Lower Arms — Adjustable lower control arms allow fine-tuning of suspension geometry.
• 6" Coilover Conversion Box — Converts your factory coil setup to a modern 4-Link arrangement.
• Transfer Case Clocking Kit — Re-indexes the transfer case to maintain proper driveline angles after the lift.
• Vertex 2.5 Adjustable Front Shocks (Pair) — Nitrogen-charged monotube design with 8-stage damping adjustment and 56% greater fluid capacity than standard reservoir shocks for superior dampening control.
• Universal 3" × 4" × 1.5" U-Bolt Kit — Additional fastening hardware for secure mounting.

Important notes

• Diesel engine models only — does NOT fit gas-powered Super Dutys.
• 4WD only — not compatible with 2WD configurations.
• Does NOT fit dually models or manual shift transfer cases.
• 10-speed automatic transmission models must have the dial pin removed during installation.
• Does NOT work on vehicles equipped with the Tremor Factory Trim Package.
• Installation requires cutting and drilling; plan 6–10 hours for completion.
• Recommended tire range: 35"–37".

Why customers pick this at Road Runner

• True 4-Link geometry with adjustable coilovers — ride height and dampening tuning dialed in by experienced technicians.
• Radius arm drop brackets and transfer case clocking ensure proper caster and driveline angles — factory handling preserved after the lift.
• Vertex 2.5-inch monotube shocks with external reservoirs deliver superior dampening and durability versus cast blocks or standard coil setups.
• Rough Country's lifetime replacement warranty backed locally — structural and workmanship defects covered after purchase.
• Professional alignment performed in-house as part of every lift install — no separate shop visit needed.
• Locally installed by suspension technicians who do 4-Link conversions every week — cutting, drilling, geometry, and testing all handled right here.

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