Fox 2.5 Performance Elite Rear Reservoir Shock 2014-2025 Ram 3500 4-6″ Lift
FOX Performance Elite Series 2.5 Reservoir Rear Shocks
2014–2025 Ram 3500 | 4–6" Lift
Upgrade your suspension with FOX Performance Elite Series 2.5 Reservoir smooth body rear shocks, engineered to deliver enhanced ride quality and precise control when heading off the pavement. Drawing directly from FOX’s Off-Road race shock technology, these shocks have been perfected in brutal racing conditions that most drivers will never encounter. FOX athletes continuously push performance limits in competition, developing race-proven technology you can bolt onto your truck.
The external reservoir increases oil and nitrogen capacity for improved heat dissipation, fade resistance, and consistent damping performance under demanding conditions. It also delivers an aggressive, race-inspired appearance. Designed specifically for lifted applications, these shocks provide improved damping control whether you're towing, daily driving, or running rough terrain.
Experience the incredible performance, durability, and precise control that FOX Performance Elite Series 2.5 Reservoir shocks are built to deliver.
Key Features
- 2.5" hard-anodized aluminum shock body
- External reservoir for increased oil and nitrogen capacity
- Vehicle-specific valving
- Race-developed high-flow piston
- 7/8" hard chrome plated alloy steel shaft
- PTFE-lined spherical bearings
- Bolt-on rear application
Specifications
- Series: Performance Elite
- Lift Range: 4–6" rear
- Travel: 12.18"
- Extended Length: 31.61"
- Compressed Length: 19.43"
- Mounts: Eyelet top & bottom
- Body: 2.5" CNC machined 6061-T6 hard-anodized aluminum
- Shaft: 7/8" heat-treated alloy steel
- Valving: Application specific
Fitment
- 2014–2025 Ram 3500
- Rear application
- Fits single rear wheel (SRW) models only
- Does NOT fit air suspension equipped trucks
- Verify lift height and suspension configuration prior to ordering.
Installation
- Direct bolt-on installation
- Utilizes factory mounting locations
Estimated Install Time: 1–2 hours
Skill Level: Moderate mechanical experience recommended
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.