6 Inch Lift Kit | Diesel | No Ovld | M1 | Ford F-250/f-350 Super Duty (23-26)

Built for diesel Super Duty owners who want a commanding stance without sacrificing ride quality, this Rough Country 6-inch lift kit raises your truck while preserving factory suspension geometry. Accommodate up to 37-inch tires and maintain the smooth, balanced handling you expect from your F-250 or F-350.

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 In Block U-Bolt Kit (No Overloads) — rear fabricated blocks engineered to be stronger and longer-lasting than cast alternatives, with anti-axle wrap geometry to maintain stock ride quality.
• 6 Inch Coil Box — front coil spring platform that works with radius arm drop brackets to keep suspension angles as close to factory specification as possible.
• Radius Arm Drop Brackets — precision-machined drop brackets that bolt into factory mounts for proper caster geometry, crucial to maintaining factory handling and driveability without additional steering corrections.
• Transfer Case Clocking Kit — positions the transfer case for optimal driveline clearance and geometry after the lift.
• M1 MONOTUBE Shock Absorbers (Pair, Front & Rear) — application-valved N3 series shocks tuned for balanced on and off-road performance.
• Kit Box — miscellaneous fasteners and hardware required for complete installation.

Important notes

• Models equipped with a 10-speed transmission must remove dial pin during installation.
• Does NOT fit gas engine models — diesel Super Duty only.
• Does NOT fit manual shift transfer cases.
• Does NOT fit dually models.
• Does NOT work on models equipped with Tremor Factory Trim Package.
• Installation requires cutting and drilling; allow 6–10 hours for completion.

Why customers pick this at Road Runner

• Rough Country's limited lifetime replacement warranty backed by local service — we stand behind every install.
• Radius arm drop brackets correct caster angle to preserve factory handling without steering feel degradation.
• Fabricated rear blocks outlast cast alternatives and eliminate common lift-block ride quality issues.
• Professionally installed by techs who perform these kits every week — precision matters for geometry.
• Alignment performed in-house as part of every lift install, ensuring your truck drives true from day one.

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