KRYPTONITE 4.5"/5.5" FORD POWERSTROKE F250/F350 LIFT DUAL RATE COIL SPRINGS 2005-2025

Fits; 2005-2025 Ford F-250/F-350 Powerstroke Diesel 4X4 / 2017+ F-450/F-550 4X4 Only (On F-450/F-550 Trucks, load ratings will be reduced) *SOLD AS A PAIR, COIL SPRING SET ONLY. THIS IS NOT A COMPLETE LIFT KIT* FEATURES: 4.5" of Lift 2005-2019, 5.5" of Lift 2020+ Multi-Rate Spring, Designed for the 6.7L Powerstroke Powder Coated Black Finish Shot Peened for Durability  Improved Strength and Rigidity over OEM Direct Fit Install Made in the USA DESCRIPTION: After years of testing, from daily driving to harsh off road terrain, heavy hauling and everything in between, the Kryptonite 4.5"/5.5" Dual Rate Lift Coil Spring set is now available. This is the most durable and premium spring option on the market. Designed with heavy duty truck use in mind, this spring provides rugged load handling capabilities while maintaining an extremely comfortable ride. Using top rated materials we can produce a plush ride with minimal spring sag. Our true Dual Rate Spring can truly provide the best of bo