6 Inch Lift Kit | Radius Arm | Ford F-250/f-350 Super Duty 4wd (2023-2026)

Built for Ford Super Duty owners who want 6 inches of lift without sacrificing factory ride geometry — Rough Country's 6-inch Radius Arm Drop Suspension Lift is a complete bolt-on kit engineered to level your truck front-to-rear while preserving smooth, predictable handling. Run up to 37-inch tires and keep your suspension working the way Ford designed it.

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" Radius Arm Kit — Tubular arms bolt into factory mounts for proper caster alignment and factory-like suspension angles, critical to maintaining handling and driveability after the lift.
• 6.5 In Block U-Bolt Kit — Fabricated rear blocks stronger and longer-lasting than cast alternatives, with anti-axle wrap design to eliminate common lift-block issues while preserving stock ride quality.
• Radius Arm Passenger and Driver Upgrade Boxes — Precision-fit upgrades for each side that ensure even load distribution and proper geometry across both front corners.
• N3 Shock Kit — Application-valved shock absorbers tuned for balanced on- and off-road performance, complementing the geometry correction of the radius arms.
• 6 Inch Coil Box — Front coil spring upgrade to work harmoniously with the radius arms and deliver the full 6-inch lift while maintaining factory-like feel.

Important notes

• Does NOT fit manual shift transfer cases.
• Does NOT fit dually models.
• Does NOT work on models equipped with Tremor Factory Trim Package.

Why customers pick this at Road Runner

• Tubular radius arms preserve factory caster angles — suspension geometry stays correct, so your truck handles and rides like Ford intended, not like a lifted truck.
• Professionally installed by techs who perform these lifts every week — we know the exact angle, torque spec, and bushing pre-load that gets you 6 inches of clearance without vibration or pull.
• Alignment performed in-house as part of every lift install — included, not an add-on, so your truck leaves here tracking straight.
• Rough Country lifetime warranty backed locally — if something fails, we handle the replacement right here, no shipping your truck across the country.

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