SKU: 987-24-035
Fox 2011+ GMC Sierra 2500/3500 HD 4-6in Lift Rear 2.5 Performance Series Smooth Body IFP HTO Shock
Enhance rear suspension on 2011-2024 GMC Sierra 2500 HD and 3500 HD trucks equipped with 4-6 inch lift kits using this FOX 2.5 Performance Series Smooth Body shock. It extends dropout travel for greater off-road articulation while providing performance valving for reduced sway and connected on-road handling. Tuned for HD GM trucks this HTO shock separates oil and gas with an internal floating piston for consistent damping.
Key Features
- Extended Travel Design: Adds dropout travel in 4-6in lift applications for improved off-road wheel travel and articulation without compromising ride quality
- Performance Valving: Tuned specifically for 2011+ Sierra HD providing on-road comfort with firm control to minimize body roll and enhance stability
- Aluminum Smooth Body: Dissipates heat four times faster than steel keeping shock performance consistent during extended hard use
- IFP Technology: True internal floating piston prevents cavitation for fade-resistant operation with race-developed main piston
- HTO Reservoir: High-temperature oil and external reservoir maintain viscosity and damping under extreme conditions
Product Notes
- Sold individually pair recommended for best results
- Fully serviceable with rebuild kits available from FOX
- Ships in protective tube packaging
Installation Notes
- Professional installation recommended.
- Designed for vehicles with 4-6in rear lift kits verify lift height before install
- Stem top mount eyelet bottom mount uses factory hardware
This Part Fits
| Year | Make | Model | Submodel |
|---|---|---|---|
| 2011-2024 | GMC | Sierra 2500 HD | Denali |
| 2024 | GMC | Sierra 2500 HD | Denali Ultimate |
| 2022-2024 | GMC | Sierra 2500 HD | Pro |
| 2011-2024 | GMC | Sierra 2500 HD | SLE |
| 2011-2024 | GMC | Sierra 2500 HD | SLT |
| 2011-2014 | GMC | Sierra 2500 HD | WT |
| 2020-2024 | GMC | Sierra 3500 HD | AT4 |
| 2011-2024 | GMC | Sierra 3500 HD | Denali |
| 2024 | GMC | Sierra 3500 HD | Denali Ultimate |
| 2022-2024 | GMC | Sierra 3500 HD | Pro |
| 2011-2024 | GMC | Sierra 3500 HD | SLE |
| 2011-2024 | GMC | Sierra 3500 HD | SLT |
| 2011-2014 | GMC | Sierra 3500 HD | WT |
| 2015-2024 | Chevrolet | Silverado 3500 HD | High Country |
| 2011-2024 | Chevrolet | Silverado 3500 HD | LT |
| 2011-2024 | Chevrolet | Silverado 3500 HD | LTZ |
| 2011-2024 | Chevrolet | Silverado 3500 HD | WT |
| 2020-2024 | GMC | Sierra 2500 HD | AT4 |
| 2024 | GMC | Sierra 2500 HD | AT4X |
| 2020-2024 | Chevrolet | Silverado 2500 HD | Custom |
| 2015-2024 | Chevrolet | Silverado 2500 HD | High Country |
| 2011-2024 | Chevrolet | Silverado 2500 HD | LT |
| 2011-2024 | Chevrolet | Silverado 2500 HD | LTZ |
| 2011-2024 | Chevrolet | Silverado 2500 HD | WT |
Why Choose FOX?
- Race-proven in off-road competition for decades
- Aluminum construction resists corrosion and heat buildup
- Precision engineering matches exact vehicle suspension geometry
Frequently Asked Questions
-
Q: Will this shock fit my 2019 GMC Sierra 2500 Denali with 5in lift?
A: Yes it fits 2011-2024 Sierra 2500 HD Denali models equipped with 4-6in rear lift verify your exact lift setup -
Q: What materials are used in construction?
A: 2.5in diameter aluminum smooth body race-developed piston high-temp oil and IFP separator for durability -
Q: What warranty coverage applies?
A: FOX offers limited lifetime warranty against defects contact FOX for service or claims
Shipping & Handling
- Method: Ground shipping UPS/FedEx
- Availability: In stock - ships same or next business day
- Packaging: Protective tube 27in x 6in x 6in
- Weight: 8.1 lbs
FOX
FOX shocks and suspension for trucks, SUVs, and off road builds are stocked at Black Ops Auto Works. Shop FOX 2.0, 2.5, and 3.0 Performance Series shocks, IFP and reservoir shocks, remote reservoir shocks, DSC adjustable shocks, and complete FOX suspension kits for Ford F-150 and Raptor, Toyota Tacoma, Tundra, and 4Runner, Jeep Wrangler and Gladiator, Chevrolet Silverado, and additional truck and SUV platforms. Every FOX shock is filterable by year, make, model, trim, cab configuration, and drivetrain so the correct shock length, travel, and mounting style ships the first time. Black Ops Auto Works carries 651 FOX SKUs across Performance Series, reservoir, and DSC adjustable categories. What This Collection Covers FOX built its reputation in off road racing and motocross before bringing that damper technology to truck and SUV suspension. This collection covers FOX shock absorbers built for trucks, SUVs, and off road builds running anywhere from a mild leveling kit to a full trav...
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