FOX Performance Rear Shock 2017-2025 Ford F-250/350 Super Duty 4-6" Lift
2017–2025 Ford F-250/F-350 Super Duty 4WD Fox 2.0 Performance Series IFP Rear Shock (4–6" Lift)
Upgrade your ride quality and control with the Fox 2.0 Performance Series IFP Rear Shock. Engineered with race-proven damping technology, these shocks are designed to transform the performance of your truck or SUV by delivering a comfortable on-road ride and predictable off-road handling—even in demanding conditions. The Fox 2.0 Performance Series IFP shock combines advanced engineering with real-world durability. Its mono-tube design uses an Internal Floating Piston to separate shock oil from the high-pressure nitrogen gas chamber, eliminating aeration and maintaining consistent performance. The precision aluminum body improves heat dissipation, ensuring reliable operation under heavy use. Inside, race-developed high-flow damping pistons work alongside application-specific valving to deliver a smooth, controlled ride across varying terrain, giving you the confidence and stability needed for both comfort and performance.
Key Features
- Performance tuned for vehicle-specific applications
- 2.0” impact-extruded and CNC-machined 6061-T6 aluminum body for strength and heat dissipation
- Clear anodized body finish resists corrosion and wear over time
- Internal Floating Piston (IFP) separates oil from high-pressure nitrogen gas to reduce fade
- Race-developed high-flow piston design for consistent damping performance
- Application-specific valving to maximize ride quality and control
- Black anodized, CNC-machined 6061-T6 billet aluminum components
- 5/8" hard chrome plated, heat-treated alloy steel shaft for durability
- Redundant sealing system (main seal, wiper seal, scraper seal) for long service life
- Aluminum body dissipates heat faster than traditional steel shocks
- Eyelet upper and lower mounts for secure installation
Specifications
- Series: Performance
- Travel: 13.62"
- Extended Length: 35.02"
- Compressed Length: 21.4"
- Rear Lift Height: 4–6"
- Top Mount: Eyelet
- Bottom Mount: Eyelet
Installation
- Difficulty: Easy
- Estimated Time: 1–2 hours
- Tools Required: Basic hand tools
- Installation Type: Direct bolt-on
Note: Reuses factory mounting hardware unless otherwise specified.
Fitment
- 2017–2025 Ford F-250 Super Duty 4WD (Rear, 4–6" Lift)
- 2017–2025 Ford F-350 Super Duty 4WD (Rear, 4–6" Lift)
Ideal For
- Daily drivers wanting improved ride quality
- Off-road enthusiasts needing reliable performance
- Replacing worn factory shocks with a performance upgrade
Built Right. Backed Right.
Our crew’s on call Monday–Friday, 9–5 EST. Hit us up at 865-983-5004 — real support, done right.
Why Fox Shocks
Fox shocks are well-regarded in the off-road and performance world because they combine durability, advanced damping technology, and customization options that suit a wide range of vehicles and driving styles. For 4WD trucks, the “best” Fox shocks depend on how you actually use the truck — daily driving, towing, trail riding, or hardcore off-road.
Performance Series
Yes
No
Fox Shocks FAQ's
Should I Get 2.0 or 2.5 Shocks
Choose Fox 2.0 if:
You prioritize a smoother daily ride.
You stick to moderate trails and lighter off-road use.
Budget-friendly performance is key.
Choose Fox 2.5 if:
You demand more from your suspension—like aggressive off-roading, towing, or extended high-speed use.
You need better heat management and durability.
You don’t mind paying a bit more for enhanced performance and longevity.
Why Monotube Shocks Excel on Lifted Trucks
Handles Added Unsprung Weight – Larger wheels/tires from a lift add rotational mass and stress to your suspension. Monotube designs have better damping control to keep those tires planted.
Better Heat Dissipation – The single-tube design allows oil and gas to cool more efficiently, preventing fade during towing, off-roading, or long highway runs.
More Precise Handling – They respond faster to suspension movement, which is critical when correcting for body roll in a taller truck.
Will Better Shocks Improve Ride Quality
Tightening Up a Floaty Vehicle
If your truck feels like it’s “floating” or wandering at highway speeds, new shocks will firm up the suspension, improve steering response, and keep the body from rolling excessively in turns.
This doesn’t necessarily make the ride softer — it makes it more controlled.
Reducing Harsh Bouncing & Jarring
If you’re feeling hard bounce after hitting a bump (especially front or rear “pogo stick” motion), your shocks likely have lost rebound damping.
New shocks restore that damping, keeping your tires on the ground and absorbing energy before it reaches you.
Why Measure Shocks and Lift Height
1. Improved Ride Comfort
Matching the right shocks to your truck’s lift height enhances ride comfort. Ill-fitting shocks can cause a harsh, bumpy ride and limit suspension travel.
2. Better Handling & Control
Shocks sized for your lift height improve steering stability, cornering, and overall control — especially on rough terrain or with larger tires.
3. Increased Safety
The right shocks keep your tires in consistent contact with the ground, reducing the risk of skids, loss of control, or suspension component damage.
4. Greater Durability
When shocks operate within their intended range, they last longer and protect other suspension parts from premature wear.
5. Optimal Performance
A well-matched suspension setup ensures your truck performs at its best, whether you’re off-roading, towing, hauling, or commuting daily.