FOX 2.5 Performance Elite Series Rear Shock 2020-2025 GM 2500/3500 HD 0-1" Lift
Fox Performance Elite Series 2.5 Adjustable Rear Shocks
FOX Performance Elite Series 2.5 Reservoir smooth body shocks deliver enhanced ride quality and the control you need when heading off the pavement. Designed using FOX Off-Road race shock technology, these shocks have been refined through demanding real-world conditions to deliver proven performance for truck and SUV applications. The external reservoir increases oil and nitrogen capacity for improved damping consistency and heat management while adding a race-inspired appearance. Designed as a complete bolt-on solution, Performance Elite shocks are available for stock and lifted applications and provide precise, confidence-inspiring control across any terrain.
Fitment & Application
- Direct-fit performance replacement
- Fits 2020–2025 Chevrolet Silverado 2500HD / 3500HD
- Fits 2020–2025 GMC Sierra 2500HD / 3500HD
- Designed for vehicles with 0–1.0″ rear lift
Key Features
- Performance Elite Series design derived from FOX off-road racing technology
- 2.5″ CNC-machined aluminum shock body with hard-anodized finish for corrosion resistance and improved heat dissipation
- External remote reservoir with Dual Speed Compression adjuster for tuning ride quality and control
- High-flow piston and precision valving for consistent damping across varying terrain and speeds
- 7/8″ hard chrome-plated alloy steel shaft for strength and durability
- PTFE-lined spherical bearings and redundant sealing system for smooth articulation and long service life
What’s Included
Pair of FOX Performance Elite Series 2.5 Adjustable Rear Shocks
Reservoir mounting hardware (where applicable)
Specifications
- Series: Performance Elite
- Shock Body Diameter: 2.5″
- Design: Remote reservoir with Dual Speed Compression adjuster
- Extended Length: Approximately 26.31″
- Compressed Length: Approximately 16.34″
- Travel: Approximately 9.97″
- Upper Mount: Eyelet
- Lower Mount: Eyelet
- Adjustability: Compression adjustable
Performance Benefits
- Improved ride quality for daily driving, towing, and off-road use
- Enhanced suspension control at higher speeds and on rough terrain
- Adjustable damping allows tuning for load, terrain, and driving style
- Oversized shock body and remote reservoir help maintain consistent performance under heat and heavy use
Installation & Notes
- Bolt-on installation using factory mounting locations
- Professional installation recommended for best results
- Designed specifically for rear suspension applications
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.