Fits:
2017-2026 Ford Super Duty F-450 4x4 Power Stroke
2017-2026 Ford Super Duty F-550 4x4 Power Stroke
Important Fitment Details:
- You may need to perform the Ride Height Recalibration routine if your truck is equipped with headlamp leveling sensors.
- Does not fit on gasoline powered trucks.
Features:
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Complete Suspension System – Includes dual-rate coil springs, FOX 2.5 Performance Elite shocks, heavy-duty radius arms, bump stop spacers, and installation hardware for a properly engineered leveling system
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Dual-Rate 2.125" Lift Coil Springs – Specifically designed for Ford Power Stroke Super Duty trucks to improve ride quality while maintaining towing and hauling capability
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FOX 2.5 Performance Elite Shocks – Premium remote reservoir shocks featuring Dual Speed Compression (DSC) adjusters for precise tuning of ride quality and suspension performance
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Remote Reservoir Design – Increased oil capacity improves heat dissipation and damping consistency during towing, hauling, and extended off-road use
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Dual Speed Compression Adjustability – Independently tune low-speed and high-speed compression damping to optimize ride comfort, handling, and bottom-out resistance
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Heavy-Duty Radius Arms – Fully boxed construction improves strength, durability, and suspension geometry correction on leveled trucks
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Adjustable Caster Correction – Selectable +2°, +4°, and +6° caster settings improve steering feel, highway tracking, and return-to-center
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Improved Ride & Handling – Components are engineered to work together for superior control, stability, and ride quality both on and off-road
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6061 Billet Bump Stop Spacers – Maintains proper bump stop engagement and suspension travel on leveled applications
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High-Strength Aluminum Shock Bodies – Type III hard-anodized 6061-T6 aluminum bodies resist corrosion while efficiently dissipating heat
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Direct Bolt-On Installation – No cutting, welding, or fabrication required
Description:
The Kryptonite Stage 3 Leveling Kit with FOX 2.5 Performance Elite Remote Reservoir Shocks is the ultimate suspension upgrade for 2017-2025 Ford F-450 and F-550 Super Duty diesel trucks. Designed for owners who demand exceptional ride quality, towing stability, suspension performance, and long-term durability, this complete system combines Kryptonite’s heavy-duty suspension components with FOX’s most advanced Performance Elite shock package.
Built around Kryptonite’s dual-rate coil springs, the system is engineered specifically for the front axle weight and operating demands of the Power Stroke platform. These springs provide improved ride comfort and suspension compliance while maintaining the support required for towing, hauling, and commercial-duty use. Whether the truck is loaded with equipment, pulling a trailer, or serving as a daily driver, the spring design delivers a balanced combination of comfort and capability.
At the heart of the system are FOX 2.5 Performance Elite remote reservoir shocks. Featuring large 2.5-inch Type III hard-anodized aluminum bodies, oversized 7/8-inch shafts, remote reservoirs, and FOX’s Dual Speed Compression (DSC) adjusters, these shocks deliver a level of control that far exceeds traditional monotube designs. The remote reservoir increases oil volume for improved cooling and damping consistency, while the DSC adjusters allow drivers to independently tune low-speed and high-speed compression characteristics for their specific driving style and vehicle setup.
FOX’s larger high-flow piston design and vehicle-specific valving provide exceptional control over rough pavement, expansion joints, washboard roads, and challenging off-road terrain. The result is improved bottom-out resistance, greater suspension confidence, and a more composed ride whether the truck is towing heavy loads, navigating backroads, or covering long highway miles.
Kryptonite heavy-duty radius arms complete the package by correcting suspension geometry and significantly increasing front-end strength. Their fully boxed construction, internal gusseting, and adjustable caster correction settings help reduce wandering, improve steering feel, and enhance straight-line stability after lifting. Combined with billet aluminum bump stop spacers and premium installation hardware, this complete suspension system delivers maximum performance, durability, and ride quality for Super Duty owners who expect their truck to perform at the highest level both on and off the pavement.
Includes:
- 2 x Fox 2.5 Performance Elite Adjustable Reservoir Front shocks - KRS097
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2 x Fox 2.5 Performance Elite Adjustable Reservoir Rear shocks - KRS096
- 1 x Kryptonite Death Grip Shock Reservoir Mounts - KRFSM05-65
- 2 x 3" Leveling Coil Springs - KRFC25
- 2 x Radius Arms - KRFDRD1
- 1 x Adjustable Track Bar - KRFTB11-2
- 1 x Bump Stop Spacer Kit - KRFB25
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1 x Brake Line Relocation Bracket - KRFB17
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].
