Description
987-24-035: FOX® 2.5 Performance Series HTO Rear Shock, 4-6 inch lift, for 2011-2026 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD.
IMPORTANT: This is the 4-6 inch lift Rear application, covering both the 2011-2019 and 2020+ generations of the Silverado/Sierra 2500 HD and 3500 HD platform. For a 1.5-2.5 inch rear lift on the same vehicle range, see part number 987-24-011. These SKUs are not interchangeable – matching the correct lift height to your vehicle’s actual ride height is required for proper shock performance. Sold individually, one shock per shock absorber position.
The FOX® 2.5 Performance Series HTO shock is a bolt-on shock loaded with position-sensitive technology, vehicle-specific valving, and larger pistons to improve on and off-road performance. A type II anodized aluminum body efficiently dissipates heat and prevents corrosion. The 2.5-inch shock body features an internal floating piston (IFP) to separate the shock oil from the high-pressure nitrogen, optimizing damping.
Hydraulic Top Out (HTO) technology offers usable position-sensitive rebound damping control on and off the pavement. HTO reduces harsh top-outs and increases comfort by forcing shock oil through a secondary shim stack to slow down shock shaft speed. HTO is particularly beneficial after installing heavier, aggressive tires and on applications lifted higher than OEM specification.
This bolt-on FOX® 2.5 Performance Series HTO shock increases damping capacity and ride comfort with position-sensitive rebound control, and is backed by FOX®’s Limited Lifetime Warranty.
- Fits 2011-2026 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD with 4-6 inches of rear lift
- 2.5″ impact-extruded 6061-T6 aluminum shock body with type II clear-anodized plating for heat dissipation and corrosion resistance
- High-flow, velocity-sensitive damping with vehicle-specific valving
- 5/8″ hard chrome shaft
- Internal floating piston (IFP) separates shock oil from high-pressure nitrogen
- Hydraulic Top Out (HTO) piston reduces harsh top-outs and improves comfort at speed
- Eyelet top mount, eyelet bottom mount
- Backed by FOX®’s Limited Lifetime Warranty
- Sold individually
| Part Number | 987-24-035 |
| Brand | FOX® |
| Series | 2.5 Performance Series |
| Position | Rear |
| Lift Height | 4-6 inches |
| Travel | 10.39 inches |
| Extended Length | 28.73 inches |
| Compressed Length | 18.34 inches |
| Top Mount | Eyelet |
| Bottom Mount | Eyelet |
| Shaft Diameter | 5/8″ hard chrome |
| Piston Type | Internal Floating Piston (IFP) with Hydraulic Top Out (HTO) |
| Warranty | FOX® Limited Lifetime Warranty |
| What’s Included | (1) FOX® 2.5 Performance Series HTO Rear Shock, sold individually |
This FOX® 2.5 Performance Series HTO shock is engineered specifically for the Rear position on 2011-2026 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500 HD, GMC Sierra 2500 HD, and GMC Sierra 3500 HD trucks running 4 to 6 inches of rear lift. Confirm your truck’s actual rear lift height before ordering – part number 987-24-011 covers 1.5-2.5 inches of rear lift on the same vehicle range.