FOX 2.0 Performance Series Rear Shock 2011-2019 GM 2500/3500 HD 1.5–3.5″ Lift
2011–2019 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD Fox Performance Series 2.0 IFP Front Shocks (1.5"–3.5" Lift)
Upgrade your suspension with the proven performance of FOX Performance Series 2.0 IFP shocks. Engineered with the latest in shock technology, these smooth body shocks are designed to transform the ride quality and handling of your truck. They combine race-proven damping control with precision engineering to deliver a comfortable on-road ride and predictable off-road performance—even in the toughest conditions.
The precision metal impact aluminum body increases cooling capacity while remaining corrosion-resistant for long-term durability. Inside, FOX’s race-proven performance valving works in conjunction with a high-flow damping piston to provide consistent, controlled performance across varying terrain. The Internal Floating Piston (IFP) mono-tube design separates shock oil from the high-pressure nitrogen gas chamber, eliminating oil aeration and ensuring maximum damping efficiency. This combination of advanced valving and IFP technology delivers a predictable, stable ride capable of handling rough roads, towing demands, and off-road use with confidence.
Key Features
Internal Floating Piston (IFP) Design
Separates oil and nitrogen gas to eliminate fade and maintain consistent performance under heavy use
2.0 Aluminum Shock Body
Lightweight, corrosion-resistant construction for improved heat dissipation and durability
Race-Proven Valving Technology
Application-specific tuning paired with a high-flow piston for predictable ride quality and control
Smooth, Controlled Ride
Reduces body roll, brake dive, and road vibration for improved stability on and off-road
Direct Bolt-On Installation
Designed for a straightforward install using factory mounting locations
Specifications
- Series: Performance
- Travel: 6.61"
- Shock Type: Monotube with Internal Floating Piston (IFP)
Construction & Materials
- Body: 2.0" impact extruded and CNC machined 6061-T6 aluminum, clear anodized for corrosion resistance
- Body Finish: Clear anodized
- Components: Black-anodized CNC-machined 6061-T6 billet aluminum
- Shaft: 5/8" hard chrome plated, heat-treated alloy steel
Internal Design
- Piston: Race-developed high-flow piston design
- Valving: Application-specific valving to maximize performance
- Seals: Redundant sealing system with main seal, wiper seal, and scraper seal
Dimensions
- Extended Length: 20.39"
- Compressed Length: 13.78"
Mounting
- Top Mount: Bar pin
- Bottom Mount: C1
Fitment
Chevrolet Silverado 2500HD / 3500HD (2011–2019)
GMC Sierra 2500HD / 3500HD (2011–2019)
- Fits front position only
- Designed for 1.5" to 3.5" of lift
- Compatible with all trims and configurations
Installation
- Install Time: Approximately 1–2 hours
- Difficulty Level: Easy to Moderate
- Hardware: Reuses factory mounting hardware unless otherwise specified
Notes
- Designed for improved ride quality and performance over stock shocks
- Ideal for daily driving, towing, and light to moderate off-road use
- Not intended for extreme racing or long-travel suspension setups
Why Choose FOX Performance Series Shocks?
FOX brings race-proven engineering into a dependable upgrade for heavy-duty trucks. The 2.0 IFP series delivers consistent damping, reduced fade, and long-term reliability—making it a solid choice for drivers who demand both comfort and performance.
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.