4.5 Inch Lift Kit | Radius Arm | Diesel | Ford F-250/f-350 Super Duty (23-26)

Built for diesel Super Duty owners who want commanding ground clearance and a level stance without compromise, this 4.5" Suspension Lift Kit from Rough Country eliminates factory rake, clears up to 35" tires, and maintains factory-like suspension geometry through precision-engineered radius arms and sway bar correction.

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 — Oversized fabricated blocks with anti-axle wrap design to eliminate unwanted movement under torque and preserve ride quality even under load.
• Radius Arm Kit Box (4.5"–6") — The foundation of your lift: tubular radius arms with 2" outer diameter engineered for superior strength and optimized suspension geometry, bolting directly into factory mounts.
• Radius Arm Passenger & Driver Upgrade Boxes — Precision-fit assemblies that maintain factory suspension angles and include sway bar drop and track bar relocation brackets for proper geometry.
• N3 Shock Kit — Nitrogen-charged shocks tuned for balanced on-road comfort and trail performance.
• 2023–2024 Ford F-250/F-350 Diesel Front 4.5" Coil — Lifted front coil springs that raise your stance while maintaining a smooth, controlled ride.

Important notes

• Diesel engine only — this kit does NOT fit models equipped with a gas engine due to variances in motor weight.
• Not compatible with the Tremor Off-Road Package, which comes equipped with approximately 1.5 inches of factory lift.
• Not compatible with dually models.
• Maximum tire clearance is 35" with proper wheel backspacing; verify offset and backspacing before fitment.

Why customers pick this at Road Runner

• Geometry corrected for level stance — sway bar drops and track bar relocation brackets included to maintain factory-like suspension angles after lift.
• Backed by Rough Country's Limited Lifetime Warranty and installed by techs who perform these lifts every week.
• No cutting or drilling required — simple bolt-on installation that fits factory mounts directly.
• Professional wheel alignment performed in-house as part of every lift install, ensuring predictable handling and even tire wear.

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