2005-2024 Superduty Front 4.5" Dual Rate Spring Kit (ICO64010)

The ICON Vehicle Dynamics 4.5-inch Front Dual Rate Spring Kit is a high-performance suspension upgrade for the 2005-2025 Ford F-250 and F-350 Super Duty 4WD. These springs are engineered to provide a significant increase in ride height while delivering a "best of both worlds" ride quality. The dual-rate design features a softer initial rate to soak up small road chatter and a firmer secondary rate that engages during deeper compression to provide excellent bottoming resistance during aggressive off-road use or heavy hauling.

Features

• 4.5-Inch Lift Height: Provides ample clearance for up to 37-inch tires and creates an aggressive, leveled stance.
• Dual Rate Design: Delivers superior on-road comfort without sacrificing the stability and bottoming control required for off-road performance.
• Shot-Peened & Pre-Set: Manufactured to the highest industry standards to prevent sagging or breakage, ensuring consistent ride height for the life of the truck.
• Increased Wheel Travel: Optimized to work with ICON 2.5 Series shocks to unlock maximum vertical wheel travel.
• Premium Finish: Finished in a durable, dual-stage semi-gloss black powder coat for maximum corrosion resistance against road salts and debris.
• Lifetime Guarantee: Backed by ICON’s lifetime warranty against spring sagging or breakage.

Notes

• Specifically fits 2005-2025 Ford F-250 and F-350 Super Duty 4WD models.
• 2020-2025 Models: Due to factory height changes, these springs may provide closer to 5-5.5 inches of lift on newer trucks.
• Tremor-equipped models will see approximately 3.5 inches of lift over their factory height.
• Optimized for Diesel engine models; gas-equipped trucks will sit slightly higher than the advertised lift height.
• Requires the use of an adjustable track bar or track bar drop bracket to ensure the front axle remains centered.
• Extended brake lines and radius arm drop brackets or aftermarket radius arms are required at this lift height to maintain proper geometry.