6 Inch Lift Kit | Diesel | Radius Arm | Ovld | Ford F-250 Super Duty (11-14)

Built for diesel F-250 owners who want 6 inches of lift without sacrificing factory geometry — this radius arm lift kit pairs durable upgraded arms with N2.0 shocks and fabricated blocks to give you aggressive stance while preserving ride quality on-road and off. Supports 35"–37" tires.

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

• Diesel Kit Box — foundational components engineered for diesel Super Duty specifications.
• Block U-Bolt Kitoverloads — specially designed anti-axle wrap rear blocks that maintain stock ride quality while eliminating common lift block problems.
• N3 Shock Kit — application-valved N2.0 series shock absorbers delivering balanced performance for on and off-road use.
• Radius Arm Upgrade Box — heavy-duty radius arms (27 lbs each) equipped with durable rubber bushings for maximum vibration absorption, precision fit to factory mounts for easier install and factory-like angles.
• 6in D-Coil — lifted coil springs providing the suspension travel needed for your 6-inch raise.
• Adjustable alignment cam — allows caster adjustment at the axle to correct geometry after the lift.
• Track bar relocation bracket and drop pitman arm — maintain proper steering geometry and suspension angle.
• Brake line relocation brackets — protect brake lines during articulation and suspension travel.

Important notes

• Does not fit F-350 models, dually models, or gas engine models.
• Requires rear factory contact overload springs — this kit only fits Super Duty models equipped with these OE springs.

Why customers pick this at Road Runner

• Radius arm design preserves factory suspension angles — corrected geometry means balanced ride quality, not a harsh, compromised daily driver.
• 100% bolt-on installation — no cutting, drilling, or welding; in and out faster than traditional lift kits.
• Rough Country Lifetime Replacement Warranty backed locally by Road Runner; we stand behind every component.
• Professional alignment performed in-house after install — caster correction and geometry verification are included, not an add-on.
• Technicians install these radius arm kits every week — experienced hands mean fewer surprises and better results.

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