ICON Stage 4 Coilover Conversion Kit Delivers Engineered 4–5.5 Inch Lift and Predictable Handling for 2008–2010 Ford Super Duty Trucks

• Precision-cast aluminum shock bodies house nitrogen-charged remote reservoirs and custom-matched velocity valves that suppress bounce on washboard terrain while maintaining stable steering feedback on paved highways.
• Reinforced DOM steel radius arms replace aged factory torsion bars, restore proper driveline pinion angles, lock wider tire diameters securely under load, and eliminate the frame flex that plagues stock off-road upgrades.
• CNC-machined billet interface brackets and grade-8 hex flange nuts complete a direct-bolt installation that requires zero cutting, drilling, or aftermarket alignment equipment to install correctly.
• Polyester-coil multi-rate spring cores work alongside adjustable shock bump stops to let you tune ride height precisely between four and five-and-a-half inches based on actual payload rather than maximum ground clearance targets.
• Double-anodized cylinder finishes and heavy-duty silicone rubber dust boots seal out brake dust, road salt, and abrasive debris that rapidly degrade OEM piston seals and accelerate corrosion.
• Fully covered by ICON’s limited lifetime warranty against manufacturing defects in materials and workmanship when installed per manufacturer torque specifications, protecting your investment through years of serious trail and daily use.
• Verified for exact fitment on 2008, 2009, and 2010 Ford F-250 and F-350 frames equipped with standard leaf-spring rear suspensions; accommodates factory-style wheel offsets without spacers, track bars, or differential drop modifications.