Kryptonite 2.5"/3.5" Leveling Dual Rate Coil Springs for 2005-2026 Ford Powerstroke F-250/F-350
This product is vehicle-specific. Select your year, make, model, engine and transmission to confirm compatibility before adding it to your cart.
Select your truck to continue
Ships directly from the supplier. The final shipping cost will be shown before payment.
- Ships from Kryptonite Products
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" Explained
You may notice our springs, and other manufacturers, have Ford springs listed as 2.5"/3.5", depending on the year. The answer is quite simple, the 2020 and later Ford Super Duty trucks sat 1" lower from the factory than its predecessors. This means the same 2.5" leveling coil on a 2005-2019 Super Duty will provide 3.5" of lift on the 2020+ Super Duty. No other parts changed, the truck just started out lower than before. The only time this is not true is for the 2020+ Super Duty TREMOR, these come from the factory with a 2" lift/level, and makes them 1" taller than a stock height 2005-2019. Using our 2.5"/3.5" spring will lift the front of a 2020+ TREMOR 1.5".
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" Explained
You may notice our springs, and other manufacturers, have Ford springs listed as 2.5"/3.5", depending on the year. The answer is quite simple, the 2020 and later Ford Super Duty trucks sat 1" lower from the factory than its predecessors. This means the same 2.5" leveling coil on a 2005-2019 Super Duty will provide 3.5" of lift on the 2020+ Super Duty. No other parts changed, the truck just started out lower than before. The only time this is not true is for the 2020+ Super Duty TREMOR, these come from the factory with a 2" lift/level, and makes them 1" taller than a stock height 2005-2019. Using our 2.5"/3.5" spring will lift the front of a 2020+ TREMOR 1.5".
Kryptonite’s lifetime statement covers eligible steering/suspension components for the original purchaser; it excludes Heim-style joints, dust boots, shocks, sensor wires and bushings. Direct/authorized-dealer purchase, registration within 90 days and proof of purchase are required. Inspection and approval precede replacement; no parts-cost refund or collateral damages. Customer pays shipping both ways. Do not assume lifetime coverage for excluded or other product types.
Return and warranty information is based on what Kryptonite Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Kryptonite Products warranty policyView complete warrantyProduct conditions
Return and warranty information is based on what Kryptonite Products offers. Product-specific eligibility and the supplier’s published conditions apply; FullSpecDiesel does not add or extend coverage.
Professional installation is recommended.
- Return eligibility
- Kryptonite publishes 30 days from delivery for direct orders only; dealer purchases go through the dealer. Authorization, proof of purchase and new/unused original-packaged goods are required. Refunds incur minimum 25% restocking, potentially higher based on condition; the return form offers store credit without restocking. Shipping is not refunded and original free-shipping expense is deducted. Used/installed goods, custom orders, tools and gift cards are excluded. Contact FullSpecDiesel before returning. Based on what Kryptonite Products offers.
- Return window
- Not stated for this product; see supplier terms
- Restocking fee
- See supplier terms; no product-specific fee stated
- Return shipping
- Based on the supplier’s return policy; see terms
- Made to order
- No
- Backorder status
- Not backordered
- Cancellation
- Subject to supplier terms; contact FullSpecDiesel before requesting cancellation
- Warranty provider
- Kryptonite Products
- Warranty duration
- Product-specific duration not stated; see supplier terms
- Compatibility
- Listed for specific vehicle configurations
- Legal use
- Street legal
- Processing estimate
- 3–10 business days supplier processing
- Shipping
- Shipping calculated at checkout
- Signature
- No signature requirement
- Supplier
- Kryptonite Products
Product compatibility is based on the vehicle and product information provided. Review your selected truck, product options, measurements, modifications, and installation requirements before ordering.