2007–2018 GMC Sierra 1500 4–6″ Lift, 2.0 Fox Performance Series Rear Shock
2007–2020 GM 1500 Rear Fox 2.0 Performance Series IFP Shock (4–6" Lift)
Upgrade your ride quality and control with the Fox 2.0 Performance Series IFP Shock. Built with race-proven damping technology, these shocks are designed to transform the performance of your truck or SUV by delivering a smooth, comfortable on-road ride and predictable handling in tough off-road conditions. The precision metal impact aluminum body increases cooling capacity and will never rust, while the monotube Internal Floating Piston (IFP) design separates shock oil from the high-pressure nitrogen gas chamber to eliminate aeration and maintain consistent performance. Paired with a race-developed high-flow damping piston and application-specific valving, this shock provides reliable, fade-resistant control and a balanced ride quality capable of handling everything from daily driving to rough terrain.
Key Features
- 2.0 Aluminum Body Construction – Lightweight, corrosion-resistant design for improved heat dissipation
- Internal Floating Piston (IFP) – Separates oil and nitrogen to prevent fade and maintain consistent damping
- Race-Proven Performance Valving – Tuned for comfort, control, and durability
- High-Flow Damping Piston – Enhances responsiveness and ride stability
- Maintenance-Free Design – Sealed for long-lasting reliability
Performance Benefits
The Fox 2.0 IFP shock is engineered to deliver a noticeable improvement over factory shocks. Whether you're daily driving, towing, or hitting rough terrain, it maintains control and comfort without sacrificing durability.
- Smoother ride over bumps and uneven terrain
- Increased stability at highway speeds
- Improved handling under load or towing
- Consistent, fade-resistant performance
Construction & Design
- Series: Performance
- Travel: 11.11"
- Rear Lift Height Compatibility: 4–6"
- Body: 2.0" impact extruded and CNC machined 6061-T6 aluminum one-piece body
- Body Finish: Clear anodized for corrosion resistance and durability
- Components: Black-anodized CNC-machined 6061-T6 billet aluminum
- Shaft: 5/8" hard chrome plated heat-treated alloy steel
- Piston: Race-developed high-flow piston design
- Valving: Application-specific valving for optimized performance
- Seals: Redundant sealing system (main seal, wiper seal, scraper seal)
- Extended Length: 29.61"
- Collapsed Length: 18.5"
- Mounting: Eyelet upper and lower
Installation
- Install Time: 1–2 hours
- Difficulty: Easy to Moderate
- Hardware: Reuses factory mounting hardware (unless otherwise specified)
Professional installation recommended if unfamiliar with suspension components.
Fitment
Rear – 4–6" Lift Applications
- 2007–2013 Chevrolet Avalanche
- 2007–2018 Chevrolet Silverado 1500
- 2019 Chevrolet Silverado 1500 LD
- 2015–2020 Chevrolet Suburban
- 2007–2014 Chevrolet Suburban 1500
- 2007–2020 Chevrolet Tahoe
- 2007–2018 GMC Sierra 1500
- 2007–2020 GMC Yukon
- 2015–2020 GMC Yukon XL
- 2007–2014 GMC Yukon XL 1500
What’s Included
- (1) Fox 2.0 Performance Series IFP Shock
Notes
- Designed as a direct replacement for factory shocks
- For vehicles with 4–6" of rear lift
- Sold individually
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.