The ICON Vehicle Dynamics 2005-2019 Ford F-250 & F-350 Super Duty 2.5" coil springs are designed for drivers demanding the ultimate in performance and ride quality, while allowing for increased wheel travel (when used with ICON shocks) and the fitment of larger tires. The ICON Ford Super Duty coil springs provide 2.5" of lift height and feature a dual rate design. The dual rate design allows for a softer initial rate for superb on road comfort and a firmer secondary rate that increases during compression for excellent bottoming resistance and off-road performance. Caster correction cams are also included to ensure proper caster angle with the new, taller ride height. Like all ICON coil springs, they feature a lifetime guarantee against sagging/breakage to produce confidence in knowing that you have the best suspension products available for the 2005-2019 Ford F-250 & F-350 Super Duty.. TECH NOTE: 2005-2016 F-250s require 4” rear blocks with 15” U-bolt kit to sit level with 2.5” lifted front. ICON block kit part # 194275 and U-bolt kit part # 37003 (2005-2010 models) or part # 67003 (2011-2016 models) are recommended.. he ICON Vehicle Dynamics 2005-2019 Ford F-250 & F-350 Super Duty 2.5" coil springs are designed for drivers demanding the ultimate in performance and ride quality, while allowing for increased wheel travel and the fitment of larger tires.. Recommended Aftermarket Tires: 35" x 12.50" (Larger tires may fit but fender trimming and modifications will be required.). Recommended Aftermarket Wheels: ICON Alloys - 17x8.5" w/ 5.00” Backspace / 6mm Offset. Recommended Aftermarket Wheels: ICON Alloys - 18x9" w/ 5.25” Backspace / 6mm Offset. Recommended Aftermarket Wheels: ICON Alloys - 20x9" w/ 5.25” Backspace / 6mm Offset. TECH NOTE: Springs rates optimized for use with trucks with diesel engines. Caster cam kit included for ideal caster angles with ride height increase. Dual-stage, semi-gloss powder coat offers excellent corrosion resistance. Dual rate coil springs improve on and off-road ride quality over stock. 2005-2019 FORD SUPER DUTY FRONT 2.5" LIFT DUAL RATE SPRING KIT. ICON 2005+ Ford F-250/F-350 Front 2.5in Dual Rate Spring Kit. 100% bolt-on system makes for an easy install. Lifetime warranty against sagging/breakage. 05-19 FSD FRONT 2.5" DUAL RATE SPRING KIT. FSD FRONT 2.5" DUAL RATE SPRING KIT. Factory Wheels & Tires Fitment: Yes. FSD 2.5" COIL KIT. 2.5" lift height. Coil Spring Set. 62510

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