Fits:
2005-2025 Ford F-250 Super Duty Power Stroke
2005-2025 Ford F-350 Super Duty Power Stroke
2017-2025 Ford F-450 Super Duty Power Stroke
2017-2025 Ford F-550 Super Duty Power Stroke
Important Fitment Details:
When installing these coils on F-450/F-550 Trucks, load ratings will be reduced. Does not fit on gasoline powered trucks.
SOLD AS A PAIR
THIS IS NOT A COMPLETE LEVELING KIT*
Features:
- 2.5" of Lift 2005-2019, 3.5" of Lift 2020+
- Multi-Rate Spring, Designed for the Powerstroke
- Powder Coated Black Finish
- Shot Peened for Durability
- Improved Strength and Rigidity over OEM
- Direct Fit Install
Description:
After years of testing, from daily driving to harsh off road terrain, heavy hauling and everything in between, the Kryptonite 2.5"/3.5" 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 material we can produce a plush ride with minimal spring sag. Our true Dual Rate Spring can truly provide the best of both worlds. Mile after mile our springs will hold up to any truck, and any job. Installing these coils on a gas Super Duty will result in a VERY stiff ride. We DO NOT recommend this whatsoever.
2.5” vs 3.5” Lift Explained
Ford changed the factory ride height of the Super Duty platform starting in 2020, lowering the front suspension approximately 1” compared to 2005-2019 trucks. Because of this, the exact same Kryptonite leveling spring will produce different lift heights depending on model year.
- 2005-2019 Super Duty trucks will see approximately 2.5” of front lift
- 2020+ Super Duty trucks will see approximately 3.5” of front lift
No changes were made to the spring itself, the newer trucks simply start from a lower factory ride height.
2020+ Tremor models already include a factory lifted suspension package and sit approximately 2” taller than a standard Super Duty from the factory. On Tremor-equipped trucks, these springs will provide approximately 1.5” of additional front lift.
Warranty:
(Kryptonite No Fine Print Lifetime Warranty)
Kryptonite Steering & Suspension components are warrantied for life to their original purchaser. This warranty covers manufacturer defects, premature wear, or breakage. Race it, jump it, off‑road it, wreck it, lift it—we don’t care. If you can break it, we’ll replace it.
Your Kryptonite products must be purchased through an Authorized Dealer, and Warranty Registration completed within 90 days of purchase. Complete warranty details can be found [here].
