ICON Stage 3 Coilover Conversion System for 2008-2010 Ford F-250/F-350 4-5.5" Lift

The ICON Stage 3 Coilover Conversion System is a bolt-in front and rear suspension upgrade for 2008–2010 Ford F-250 and F-350 4WD trucks, delivering 4–5.5 inches of ride-height-adjustable lift with 2.5-inch aluminum series shocks front and rear. The system is engineered for diesel-powered Super Duty trucks and ships as a complete multi-component kit ready for installation in the OE coil bucket location.

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.

Height Adjustability Without Compromise

The front coilover conversion replaces the factory coil spring and shock with a single height-adjustable unit, letting the owner dial in ride height anywhere in the 4–5.5 inch range after installation. Because the adjustment is built into the coilover rather than fixed by a spacer, the truck can be set lower for highway fuel economy or higher for clearance on the trail without swapping components. Coilover heights indicated are for a stock-equipped vehicle; final ride height will vary with added weight or accessories.

Rebuildable Shocks Built for the Long Haul

Front and rear shocks feature CAD-plated coilover bodies with 7/8-inch shafts and one-piece impact-extruded aluminum cylinders for corrosion resistance and a consistent finish over time. Every shock in the system is fully rebuildable and revalveable, so the damping can be serviced or tuned as the truck's use changes rather than replaced outright. Vehicle-specific shock valving is calibrated for the F-250/F-350 platform to balance on-road ride quality with off-road control.

Proven Supporting Components

Eibach coil springs are guaranteed for life against sagging or breakage, and FK rod end bearings in the adjustable track bar are chosen for extended longevity and minimal deflection under load. The included radius arm drop kit and 5-inch rear block kit maintain correct suspension geometry at the lifted height. The coilover conversion design also allows for the future addition of a secondary shock if the owner wants to expand damping capacity.

Features

• Bolt-in fitment: installs in the OE coil bucket location on 2008–2010 Ford F-250/F-350 4WD
• Adjustable lift range: 4–5.5 inches of ride height adjustment via the coilover collar
• 2.5 Aluminum Series shocks: impact-extruded aluminum cylinders, CAD-plated body, 7/8-inch shaft
• Rebuildable and revalveable: all shocks can be serviced or retuned after installation
• Eibach springs: lifetime guarantee against sagging or breakage; rated for diesel engines
• FK rod end bearings: adjustable track bar uses FK rod ends for longevity and minimal deflection

Specifications

System Components

• 08–22 FSD Front 4.5" Box Kit (qty 1)
• 05–25 FSD 4WD 4–5.5" 2.5 VS Rear Bolt-In Coilover Conversion Kit (qty 1)
• 05–16 FSD Adjustable Track Bar with FK Rod End (qty 1)
• 05–10 FSD Radius Arm Drop Kit (qty 1)
• 99–25 FSD 5" Block Kit (qty 1)
• 99–10 FSD Rear 17" U-Bolt Kit (qty 1)
• 99–25 FSD 3–6" Rear 2.5 VS Piggyback Pair (qty 1)

Who This Is For and Isn't

This system is designed for owners of 2008–2010 Ford F-250 or F-350 4WD trucks powered by diesel engines who want a complete, bolt-in coilover conversion with 4–5.5 inches of adjustable lift, improved wheel travel, and fully rebuildable dampers for overlanding or demanding off-road use.

The Eibach springs in this kit are rated for diesel engines only and are not appropriate for gas-powered F-250/F-350 trucks. Installation requires removal of the coil centering cup in the factory coil bucket. Tires larger than 35x12.50 inches may require fender trimming and additional modifications not included in this kit.

Common Questions

Does this system fit gas-powered F-250 or F-350 trucks?

The ICON Stage 3 Coilover Conversion System for 2008–2010 Ford F-250/F-350 includes Eibach coil springs rated for diesel engines only. The system is not specified for gas-powered Super Duty trucks in this application.

What installation modification does the factory coil bucket require?

Installing this coilover conversion system requires removal of the coil centering cup in the factory coil bucket before the coilover can be seated correctly. This step is noted in the ICON installation guide included with the kit.

Can the shocks be serviced or retuned after installation?

All shocks in the ICON Stage 3 system are fully rebuildable and revalveable, meaning damping characteristics can be serviced or adjusted after installation rather than requiring full shock replacement when the valving needs attention.

Will OEM wheels and tires fit after installation?

OEM wheels and tires are confirmed to fit this system. For aftermarket fitment, ICON specifies 17x8.5-inch wheels with 5.00-inch backspace or 18x9 and 20x9-inch wheels with 5.25-inch backspace, all at 6mm offset. Tires up to 35x12.50 inches are recommended; larger sizes may require fender trimming.

Does this kit allow for a secondary shock to be added later?

The coilover conversion design in this Stage 3 system is built to accommodate the addition of a secondary shock after installation, giving owners the option to expand damping capacity without replacing the primary coilover unit.