6 Inch Lift Kit | Diesel | Radius Arm | C/o V2 | Ford F-250 Super Duty (15-16)

Built for F-250 Super Duty owners who want serious clearance and a smooth ride, this 6-inch radius arm coilover conversion lift kit transforms your truck's suspension geometry while preserving factory angles. Run up to 37-inch tires without sacrificing ride quality — the key is keeping suspension components at near-factory geometry, which this kit does by design.

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" Kit Box (Coilover Conversion) — Precision-engineered front conversion hardware to mount the coilover shock system and brackets.
• Radius Arm Upgrade (pair) — Ultra-durable arms engineered to factory-angle geometry with heavy-duty rubber bushings for vibration absorption and maximum durability at 27 lbs each.
• Adjustable Vertex 2.5 Coilover Shocks (pair, 4.5–6 inches) — Monotube design with external reservoir (56% greater fluid capacity than average), nitrogen-charged, 8-stage adjustable damping for optimal control and ride quality.
• Block U-Bolt Kit & Rear Blocks — Fabricated (not cast) rear blocks engineered to prevent axle wrap, maintain stock ride geometry, and outlast stamped alternatives.
• Adjustable Alignment Cam — Allows caster correction at the axle for dialed-in geometry post-install.

Important notes

• Does not fit F-350 models, dually configurations, or gas-engine Super Duties — 2015–2016 F-250 diesel only.
• Installation requires cutting and drilling; plan 6–10 hours for full completion.
• Preserves factory suspension angles through radius arm geometry and caster adjustment to maintain driveline integrity.

Why customers pick this at Road Runner

• Rough Country's lifetime warranty backed by local service — structural and workmanship defects covered from day one.
• Professionally installed by technicians who perform these lifts every week — no guesswork.
• Alignment performed in-house as part of every lift install, ensuring caster and geometry are dialed before you drive off.
• Coilover shocks tuned for adjustability — dial in your ride quality and ground clearance independently.
• Heavy-duty radius arms preserve factory driveline geometry — smooth ride, not a choppy or harsh lift.

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