ICON Stage 4 Suspension System for 2003-2012 Ram 2500/3500 4WD 2.5" Lift

The ICON Stage 4 Suspension System raises 2003–2012 Ram 2500/3500 4WD trucks 2.5 inches and replaces the front and rear suspension with a matched set of coil springs, V.S. Aluminum Series shocks, an adjustable track bar, and tubular steel links engineered and tuned together as a complete system. Springs in this kit are rated for diesel engines only.

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.

Matched Components, Tuned Together

The Stage 4 kit is built around five component groups tuned as a unit: dual-rate coil springs, 2.5" V.S. Aluminum Series front shocks, rear shocks, an adjustable track bar, and tubular steel links. That matters because damping curves, spring rates, and link geometry interact: a shock tuned for this spring rate delivers consistent damping across its full stroke in a way a generic shock cannot. The result is predictable handling on pavement and composed, controlled travel off-road without requiring driveshaft modifications.

Shocks Built for Serviceability and Corrosion Resistance

The 2.5" V.S. Aluminum Series shocks use one-piece impact-extruded aluminum cylinders, which resist corrosion and maintain a consistent finish over years of exposure to road salt, mud, and water crossings. Internal components include FK bearings, billet top caps and rod ends, and 7/8" shafts. The shocks are fully serviceable, so internal components can be rebuilt rather than requiring full shock replacement when they eventually wear, a meaningful long-term cost difference on a truck used hard.

Adjustable Track Bar and Tubular Links

The adjustable track bar uses PTFE-lined FK bearings in place of the factory's rubber joints, improving rigidity and eliminating the flex that allows the front axle to wander under load. Adjustability lets the installer center the axle precisely under the truck after the lift is set. The fixed tubular steel upper and lower links replace factory link bushings that introduce bind at the limits of suspension travel; the steel tubes increase strength and extend the alignment range available to the installer.

Features

• Dual-rate coil springs: match-tuned to the 2.5" V.S. Aluminum Series shocks; rated for diesel engines only
• 2.5" V.S. Aluminum Series front shocks: one-piece impact-extruded aluminum cylinders, FK bearings, billet top cap and rod ends, 7/8" shafts, fully serviceable
• Rear 2.5" V.S. shocks: tuned for 2–3" of rear lift on the same platform
• Adjustable track bar: PTFE-lined FK bearings, centers front axle after installation
• Fixed tubular steel upper and lower links: reduce bind, increase strength and alignment range
• No driveshaft modifications required

Specifications

California Residents: This product contains chemicals known to the State of California to cause cancer, birth anomalies, or other reproductive harm (Proposition 65).

Who This Is For and Isn't

This kit suits 2003–2012 Ram 2500/3500 4WD owners running diesel engines who want a 2.5-inch lift with a complete, tuned front-and-rear suspension upgrade for mixed on- and off-road use.

The coil springs in this kit are rated for diesel engines only and are not intended for gas-engine Ram 2500/3500 applications. The kit does not fit 2WD models, Ram 1500, or Ram HD trucks outside the 2003–2012 model years. Tires larger than 33×11.50" may require fender trimming and additional modifications.

Common Questions

Does this kit fit a gas-engine Ram 2500 or 3500?

No. The coil springs in the ICON Stage 4 kit for 2003–2012 Ram 2500/3500 4WD are rated for diesel engines only. A gas-engine application requires a different spring specification; this kit should not be used in that configuration.

Will OEM wheels and tires still fit after installing this system?

Yes. The ICON Stage 4 system for 2003–2012 Ram 2500/3500 4WD is confirmed compatible with OEM wheels and tires. For aftermarket fitment, ICON recommends 17×8.5", 18×9", or 20×9" wheels and tires up to 33×11.50"; larger tires may require fender trimming.

Are driveshaft modifications required?

No driveshaft modifications are needed to install the ICON Stage 4 Suspension System on a 2003–2012 Ram 2500/3500 4WD. The system is designed to work within the factory driveline geometry at the 2.5-inch lift height.

Are the shocks rebuildable?

Yes. The 2.5" V.S. Aluminum Series shocks included in this Stage 4 kit are fully serviceable, meaning internal components can be rebuilt rather than requiring full shock replacement when the shocks eventually wear.

What components are included in the Stage 4 kit?

The ICON Stage 4 kit for 2003–2012 Ram 2500/3500 4WD includes a dual-rate coil spring kit, polyurethane bump stops, sway bar drop brackets, a pair of 2.5" V.S. Aluminum Series front shocks, a pair of rear 2.5" V.S. shocks, an adjustable track bar with FK bearings, and a fixed tubular steel upper and lower link kit. It ships in multiple boxes.