Fits:
2017-2022 Ford F-250 Super Duty
2017-2022 Ford F-350 Super Duty
Important Fitment Details:
Allows for up to a 35"x12.5" Tire on a 9" wide wheel w/ 4.5" Backspacing.
Features:
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FOX Performance Series 2.0 IFP Shocks – Race-proven monotube shocks featuring Internal Floating Piston (IFP) technology for improved damping consistency, ride control, and off-road performance
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1.5" Billet Aluminum Coil Spacer – Precision CAD engineered for a direct bolt-on fit with no cutting or fabrication required
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Caster Correction - +2° caster settings improve steering stability and return-to-center after lifting
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6061 Billet Bump Stop Spacers – Maintains proper suspension engagement and travel on lifted applications
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Direct Bolt-On Installation - No cutting or fabrication required
Description:
The Kryptonite Stage 1 Leveling Kit with FOX Performance Series 2.0 IFP Shocks is a complete, bolt-on suspension upgrade engineered for 2017-2025 Ford Super Duty trucks. Designed for owners looking for a simple, high-quality leveling solution that enhances ride quality, handling, and front-end stance, this kit includes everything needed to provide approximately 1.5” of front lift while maintaining proper suspension travel and everyday drivability.
At the heart of the kit are FOX Performance Series 2.0 IFP monotube shocks, engineered with an Internal Floating Piston (IFP) that separates the shock oil from the high-pressure nitrogen charge for consistent damping performance and fade resistance. Application-specific valving and FOX’s race-proven monotube design improve small bump compliance, body control, and overall ride comfort while maintaining excellent stability whether the truck is unloaded, towing, or hauling. Their lightweight 6061-T6 aluminum shock bodies efficiently dissipate heat while resisting corrosion for long-term durability in all climates.
Paired with a precision-machined 1.5” billet aluminum bottom-mounted coil spacer, brake line drop brackets, and 2-degree caster correction shims, this system provides the proper suspension geometry needed after leveling. Unlike basic spacer kits, the included caster shims restore factory steering characteristics by correcting caster angle, resulting in improved straight-line stability, steering feel, and return-to-center performance.
With the Stage 1 kit installed, your Super Duty gains the clearance needed to fit larger wheels and tires while maintaining a comfortable, controlled ride. Whether you’re building a capable daily driver, tow rig, or weekend adventure truck, the Kryptonite Stage 1 Leveling Kit with FOX Performance Series 2.0 IFP Shocks delivers premium ride quality, proven durability, and the confidence expected from a complete suspension upgrade.
Includes:
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2 x Fox 2.0 Performance Series Front shocks (KRS155)
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2 x Fox 2.0 Performance Series Rear shocks (KRS151)
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1 x Kryptonite Bump Stop Spacer Kit (KRFB25)
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1 x Kryptonite Brake Line Relocation Bracket (KRFB17)
- 1 x Kryptonite 1.5" Bottom Mounted Coil Spacer (KRFC15)
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1 x Kryptonite Caster Correction Shims (KR23228)
Instructions:
Click Here For Installation Guide
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].
