
FOX Performance Series Rear Reservoir Shock 1999-2016 Ford Super Duty Rear 1.5-3.5″ Lift
FOX 2.0 Performance Series Reservoir Rear Shock | 1999–2016 Ford Super Duty
Upgrade your truck’s suspension performance with the FOX 2.0 Performance Series Reservoir Shock, delivering FOX’s race-proven suspension technology in an affordable, bolt-on package designed for lifted trucks. Built with a 2.0-inch metal-impacted clear anodized aluminum shock body, it dissipates heat faster than traditional steel-body shocks, helping maintain consistent damping performance during demanding driving conditions.
An external reservoir increases oil and nitrogen capacity, improving cooling while also delivering an aggressive race-inspired appearance. The reservoir system includes a black anodized mounting clamp and CNC-machined 6061-T6 aluminum components for strength and durability.
Inside the shock, FOX’s race-developed high-flow damping piston combined with application-specific valvingprovides predictable ride quality, improved control, and the ability to handle rough roads, towing, and off-road terrain with confidence.
Key Features
- FOX 2.0 Performance Series rear reservoir shock
- External reservoir increases oil and nitrogen capacity for improved cooling
- 2.0" clear anodized aluminum shock body for corrosion resistance and heat dissipation
- Monotube design with race-developed high-flow damping piston
- Application-specific valving for balanced ride quality and improved vehicle control
- CNC-machined billet aluminum reservoir clamp included
- Direct bolt-on installation using factory mounting locations
- Designed for lifted truck applications
Specifications
- Shock Series: FOX 2.0 Performance Series
- Shock Type: Monotube smooth body with remote reservoir
- Position: Rear
- Body Diameter: 2.0 inches
- Extended Length: 33.5"
- Collapsed Length: 19.9"
- Travel: 13.6"
- Mount Type: Eyelet / Eyelet
- Valving: Non-adjustable
- Gas Charged: Yes
Fitment
Ford Super Duty – Rear
- 1999–2016 Ford F-250 Super Duty 4WD — 1.5"–3.5" lift
- 1999–2016 Ford F-350 Super Duty 4WD — 1.5"–3.5" lift (select models may use 4.5"–6.5" lift configuration)
- 2005–2016 Ford F-450 Super Duty (All Drivetrains) — 3"–8" lift depending on model year
- 2005–2016 Ford F-550 Super Duty (All Drivetrains) — 6"–8" lift
Installation
- Installation Type: Bolt-on replacement
- Install Time: Approximately 1–2 hours
- Tools Required: Basic hand tools
- Hardware: Factory mounting bolts reused
- Always verify proper shock length and lift compatibility before installation.
What's Included
- (1) FOX 2.0 Performance Series Reservoir Rear Shock
- Billet aluminum reservoir clamp and mounting hardware
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.
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.





