SKU: 987-24-021
Fox 2017-2024 Ford F-250/F-350 Super Duty 4-6in Lift Rear 2.5 Performance Series Smooth Body IFP HTO Shock
Upgrade your Ford Super Duty with the Fox 987-24-021 rear shock designed for 4-6 inch lift kits on 2017-2024 F-250 and F-350 models. This 2.5 inch smooth body shock with Internal Floating Piston (IFP) extends wheel travel for off-road capability while delivering precise valving for on-road stability and reduced sway. Race-developed components ensure consistent damping in harsh conditions.
Key Features
- Extended Travel Design: Increases drop-out travel in most applications to handle rough terrain without bottoming out
- Performance Valving: Tuned specifically for Ford Super Duty ride dynamics offering connected feel and less body roll on pavement
- Fade-Resistant Construction: Aluminum body dissipates heat four times faster than steel plus race-proven main piston and true IFP separating oil and gas
- Smooth Body Technology: 2.5 inch diameter aluminum reservoir reduces harshness and provides 12.27 inches of travel (extended 30.05in compressed 17.78in)
- Durability Built In: Torture-tested corrosion-resistant finish fully serviceable for long-term reliability in extreme environments
Product Notes
- Confirm your lift height is 4-6 inches before purchase for proper fit
- Shocks arrive pre-assembled and nitrogen-charged ready for install
- Handle with care during transport to protect eyelet mounts
Installation Notes
- Professional installation recommended.
- Requires existing 4-6in suspension lift kit on vehicle
- Eyelet-to-eyelet mounting with 0.50in diameter bushings included
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2017-2024 | Ford | F-250 Super Duty | King Ranch |
| 2017-2024 | Ford | F-250 Super Duty | Lariat |
| 2018-2024 | Ford | F-250 Super Duty | Limited |
| 2017-2024 | Ford | F-250 Super Duty | Platinum |
| 2017-2024 | Ford | F-250 Super Duty | XL |
| 2017-2024 | Ford | F-250 Super Duty | XLT |
| 2017-2024 | Ford | F-350 Super Duty | Lariat |
| 2018-2024 | Ford | F-350 Super Duty | Limited |
| 2017-2024 | Ford | F-350 Super Duty | Platinum |
| 2017-2024 | Ford | F-350 Super Duty | XL |
| 2017-2024 | Ford | F-350 Super Duty | XLT |
Why Choose Fox?
- Proven in off-road racing with millions of miles of real-world testing
- Anodized aluminum components resist wear and maintain performance
- Engineered for exact vehicle fit with application-specific tuning
Frequently Asked Questions
-
Q: Does this shock fit 2WD and 4WD Super Duty trucks?
A: Yes it fits both 2WD and 4WD 2017-2024 F-250 and F-350 Super Duty models with 4-6in lift rear suspension -
Q: What materials are used in construction?
A: 2.5in smooth aluminum body race-grade piston and IFP with corrosion-resistant finish for extreme durability -
Q: What warranty coverage is provided?
A: Limited lifetime warranty against defects in materials and workmanship when installed and maintained properly
Shipping & Handling
- Method: UPS Ground
- Availability: In stock - ships same or next business day
- Packaging: Protective cardboard tube 3in x 3in x 32in
- Weight: 8.85 lbs
FOX
FOX is one of the most respected suspension brands in the world, producing shocks, coilovers, reservoir shocks, IFP monotube shocks, upper control arms, and steering stabilizers that are trusted by off-road race teams, overlanders, and performance drivers who require more consistency and damping control than factory suspension can deliver. The brand's reputation was built through desert racing programs including the Baja 1000 and King of the Hammers, where FOX products are validated against the most demanding suspension punishment available before reaching the aftermarket, and that race heritage is directly reflected in the technology and build quality of their Performance, Performance Elite, and Factory Race product lines. Ford F-150, Toyota Tacoma, Toyota 4Runner, Land Cruiser, Jeep Wrangler and Gladiator, Chevrolet Silverado, and Ford Bronco owners choose FOX suspension upgrades as the single most impactful improvement to both on-road ride quality and off-road capability availabl...
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Suspension
Aftermarket suspension systems improve handling, ride quality, and ride height adjustment beyond what the factory suspension provides. From lowering springs and coilover kits for sport handling to lift kits and leveling kits for truck and SUV off-road capability, quality suspension components transform how a vehicle rides and handles. Popular Suspension Upgrades Popular suspension upgrades include coilover kits for adjustable ride height and damping, sport lowering springs for improved handling and reduced body roll, performance shock absorbers and strut assemblies, sway bar and end link upgrade kits, subframe brace kits, and complete suspension packages for lifted trucks and off-road SUVs. Alignment kits including camber bolts and camber arms are also frequently ordered after ride height changes. What is the difference between coilovers and lowering springs? Coilovers are complete shock and spring assemblies with adjustable ride height set by threading the spring perch on the shock...
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