ICON Vehicle Dynamics 2005-2007 Ford F-250/F-350 4-5.5 Inch Lift Stage 4 Coilover Conversion with Radius Arm

The ICON Vehicle Dynamics Stage 4 Coilover Conversion with Radius Arm is a complete front and rear suspension upgrade for 2005–2007 Ford F-250 and F-350 4WD trucks, delivering 4 to 5.5 inches of ride-height-adjustable lift over stock. The system combines a bolt-in 2.5-inch V.S. CDCV front coilover conversion with a fabricated radius arm system, rear 2.5-inch V.S. PB CDCV shocks, a 5-inch rear block kit, and an adjustable track bar. All eight components ship together as a single kit (SKU K63114R).

Shipping: ICON parts ship direct from ICON Vehicle Dynamics, mostly by UPS Ground. Lead times vary by part and some items are built to order, so please allow extra time. We email tracking as soon as your order ships.

Adjustable Lift Without Sacrificing Ride Quality

The front coilover conversion mounts in the OEM coil bucket location and allows the driver to dial in ride height anywhere in the 4 to 5.5-inch lift range without removing the system. Vehicle-specific shock valving and Eibach coil springs (guaranteed for life against sagging or breakage) work together to improve on-road compliance and off-road control compared to the factory suspension. The coilover shock body is CAD-plated for corrosion resistance and uses a 7/8-inch shaft; shocks are fully rebuildable and revalveable.

Radius Arm System Built for Strength and Tire Clearance

The included ICON Ford Super Duty Radius Arm System uses a fabricated, fully boxed design with a sealed pivot bushing that minimizes road feedback and supports long-term quiet operation. The profile is optimized for tire clearance at full steering lock, allowing a 37-inch tall tire to clear the radius arm without contact. Drop brackets provide on-vehicle caster adjustment, and the adjustable track bar uses an FK rod end bearing for extended longevity and minimal deflection.

Rear System and Corrosion Resistance

Rear shocks feature one-piece impact-extruded aluminum cylinders for consistent finish and excellent corrosion resistance. The 5-inch rear block kit and U-bolt kit complete the rear lift. The system is confirmed to fit with OEM wheels and tires; recommended aftermarket fitments are ICON Alloys 17×8.5-inch with 5.00-inch backspace, 18×9-inch with 5.25-inch backspace, or 20×9-inch with 5.25-inch backspace. Recommended tire size is 35×12.50 inches; larger tires may fit but will require fender trimming and modifications.

Features

• Bolt-in front coilover conversion: mounts in OEM coil bucket location; allows addition of a secondary shock
• Ride height adjustable: 4 to 5.5 inches of lift over stock, adjustable without removing the system
• Fabricated radius arms: fully boxed design with drop brackets for caster adjustment and optimized tire clearance at steering lock
• Eibach coil springs: lifetime guarantee against sagging or breakage; rated for diesel engines
• Fully rebuildable shocks: CAD-plated coilover body, 7/8-inch shaft, one-piece extruded aluminum rear cylinders
• FK rod end adjustable track bar: extended longevity and minimal deflection

Specifications

Who This Is For and Isn't

This system suits owners of 2005–2007 Ford F-250 or F-350 4WD trucks with diesel engines who want 4 to 5.5 inches of adjustable lift, improved off-road capability, and a bolt-in front coilover conversion that retains the OEM coil bucket location.

Springs are rated for diesel engines only; gas-engine-equipped trucks are not a confirmed fitment. A carrier bearing drop bracket kit (part 33700) may be required and is sold separately. Secondary shock options are not included; contact ICON Vehicle Dynamics for details. Larger tires than 35×12.50 inches may require fender trimming and modifications. Removal of the coil centering cup in the factory coil bucket is required for installation.

Common Questions

Does this system fit gas-engine F-250 and F-350 trucks?

The ICON Stage 4 Coilover Conversion with Radius Arm uses Eibach springs rated for diesel engines only. Gas-engine-equipped 2005–2007 Ford F-250 and F-350 trucks are not a confirmed fitment for this system.

What lift height does this system provide?

The Stage 4 Coilover Conversion delivers 4 to 5.5 inches of lift over stock on a stock-equipped 2005–2007 Ford F-250 or F-350 4WD. Ride height is end-user adjustable within that range via the front coilover collars.

Is a carrier bearing drop bracket included?

A carrier bearing drop bracket kit (ICON part 33700) may be required for installation of this Stage 4 system but is not included in the kit. Confirm whether your specific truck requires it before ordering.

What tire size fits without modification?

The ICON Stage 4 Radius Arm System is optimized to clear a 37-inch tall tire at full steering lock. ICON recommends a 35×12.50-inch tire for this system; larger tires may fit but will require fender trimming and modifications.

Are the shocks rebuildable?

Yes. All shocks in this Stage 4 Coilover Conversion are fully rebuildable and revalveable. The front coilover uses a CAD-plated shock body with a 7/8-inch shaft; rear shocks use one-piece impact-extruded aluminum cylinders.

Does this kit ship complete, or are components ordered separately?

The ICON Stage 4 Coilover Conversion (SKU K63114R) ships as a complete eight-component system (front box kit, front coilover conversion kit, adjustable track bar, radius arm system, radius arm drop kit, rear block kit, rear U-bolt kit, and rear shock pair) in multiple boxes.

WARNING: This product contains chemicals known to the State of California to cause cancer, birth anomalies, or other reproductive harm.