Fox Shocks 987-24-035 Performance Series HTO 2.5 Rear Shock Lift 4-6" Chevrolet Silverado/GMC Sierra 2500/3500 11-25
FOX 2.5 Performance Series HTO
The FOX 2.5 Performance Series HTO is a bolt-on shock designed with position-sensitive technology, vehicle-specific valving, and larger pistons to improve on- and off-road performance.
Its Type II anodized aluminum body efficiently dissipates heat and resists corrosion. The 2.5-inch shock body features an internal floating piston (IFP) that separates shock oil from high-pressure nitrogen to optimize damping.
Hydraulic Top Out (HTO) technology provides usable position-sensitive rebound damping on and off pavement. HTO reduces harsh top-outs and increases comfort by forcing shock oil through a secondary shim stack to slow shock shaft speed.
- Bolt-on installation for straightforward replacement
- Position-sensitive rebound control for improved ride quality
- Enhanced heat dissipation and corrosion resistance
- IFP design for consistent damping performance
*Bolt-on design fits many applications; particularly beneficial when using heavier, aggressive tires or when the vehicle is lifted beyond OEM height. Verify vehicle-specific fitment before installation.
Brand | Ridefox |
Series | Performance Series HTO 2.5 |
Shock Type | Smooth Body |
Installation side | Rear |
Lift Height, inch | 4-6" |
Type Adjusters | Non Adjustable |
Reservoir | No |
Tank Type | Internal Floating Piston (IFP) |
Body Diameter (in) | 2.5 |
Material | Aluminum |
Quantity | Single |
Box Height | 4.4 in |
Box Width | 4.5 in |
Box Length | 25.4 in |
Box Weight | 7.1 lbs |
Submodel | 4WD, RWD |
Fitment | 2011 Chevrolet Silverado 2500, 2012 Chevrolet Silverado 2500, 2013 Chevrolet Silverado 2500, 2014 Chevrolet Silverado 2500, 2015 Chevrolet Silverado 2500, 2016 Chevrolet Silverado 2500, 2017 Chevrolet Silverado 2500, 2018 Chevrolet Silverado 2500, 2019 Chevrolet Silverado 2500, 2011 Chevrolet Silverado 3500, 2012 Chevrolet Silverado 3500, 2013 Chevrolet Silverado 3500, 2014 Chevrolet Silverado 3500, 2015 Chevrolet Silverado 3500, 2016 Chevrolet Silverado 3500, 2017 Chevrolet Silverado 3500, 2018 Chevrolet Silverado 3500, 2019 Chevrolet Silverado 3500, 2020 Chevrolet Silverado 3500, 2011 GMC Sierra 2500, 2012 GMC Sierra 2500, 2013 GMC Sierra 2500, 2014 GMC Sierra 2500, 2015 GMC Sierra 2500, 2016 GMC Sierra 2500, 2017 GMC Sierra 2500, 2018 GMC Sierra 2500, 2019 GMC Sierra 2500, 2011 GMC Sierra 3500, 2012 GMC Sierra 3500, 2013 GMC Sierra 3500, 2014 GMC Sierra 3500, 2015 GMC Sierra 3500, 2016 GMC Sierra 3500, 2017 GMC Sierra 3500, 2018 GMC Sierra 3500, 2019 GMC Sierra 3500, 2021 Chevrolet Silverado 2500, 2021 Chevrolet Silverado 3500, 2021 GMC Sierra 2500, 2021 GMC Sierra 3500, 2020 Chevrolet Silverado 2500, 2020 GMC Sierra 2500, 2020 GMC Sierra 3500, 2022 Chevrolet Silverado 2500, 2022 Chevrolet Silverado 3500, 2022 GMC Sierra 2500, 2022 GMC Sierra 3500, 2023 Chevrolet Silverado 2500, 2023 Chevrolet Silverado 3500, 2023 GMC Sierra 2500, 2023 GMC Sierra 3500, 2024 Chevrolet Silverado 2500, 2024 GMC Sierra 2500, 2024 Chevrolet Silverado 3500, 2024 GMC Sierra 3500, 2025 GMC Sierra 2500, 2025 Chevrolet Silverado 3500, 2025 GMC Sierra 3500, 2025 Chevrolet Silverado 2500 |
Brand | Ridefox |
Series | Performance Series HTO 2.5 |
Shock Type | Smooth Body |
Installation side | Rear |
Lift Height, inch | 4-6" |
Type Adjusters | Non Adjustable |
Reservoir | No |
Tank Type | Internal Floating Piston (IFP) |
Body Diameter (in) | 2.5 |
Material | Aluminum |
Free shipping | Free Air |
Quantity | Single |
Box Height | 4.4 in |
Box Width | 4.5 in |
Box Length | 25.4 in |
Box Weight | 7.1 lbs |
Submodel | 4WD, RWD |
Fitment | 2011 Chevrolet Silverado 2500, 2012 Chevrolet Silverado 2500, 2013 Chevrolet Silverado 2500, 2014 Chevrolet Silverado 2500, 2015 Chevrolet Silverado 2500, 2016 Chevrolet Silverado 2500, 2017 Chevrolet Silverado 2500, 2018 Chevrolet Silverado 2500, 2019 Chevrolet Silverado 2500, 2011 Chevrolet Silverado 3500, 2012 Chevrolet Silverado 3500, 2013 Chevrolet Silverado 3500, 2014 Chevrolet Silverado 3500, 2015 Chevrolet Silverado 3500, 2016 Chevrolet Silverado 3500, 2017 Chevrolet Silverado 3500, 2018 Chevrolet Silverado 3500, 2019 Chevrolet Silverado 3500, 2020 Chevrolet Silverado 3500, 2011 GMC Sierra 2500, 2012 GMC Sierra 2500, 2013 GMC Sierra 2500, 2014 GMC Sierra 2500, 2015 GMC Sierra 2500, 2016 GMC Sierra 2500, 2017 GMC Sierra 2500, 2018 GMC Sierra 2500, 2019 GMC Sierra 2500, 2011 GMC Sierra 3500, 2012 GMC Sierra 3500, 2013 GMC Sierra 3500, 2014 GMC Sierra 3500, 2015 GMC Sierra 3500, 2016 GMC Sierra 3500, 2017 GMC Sierra 3500, 2018 GMC Sierra 3500, 2019 GMC Sierra 3500, 2021 Chevrolet Silverado 2500, 2021 Chevrolet Silverado 3500, 2021 GMC Sierra 2500, 2021 GMC Sierra 3500, 2020 Chevrolet Silverado 2500, 2020 GMC Sierra 2500, 2020 GMC Sierra 3500, 2022 Chevrolet Silverado 2500, 2022 Chevrolet Silverado 3500, 2022 GMC Sierra 2500, 2022 GMC Sierra 3500, 2023 Chevrolet Silverado 2500, 2023 Chevrolet Silverado 3500, 2023 GMC Sierra 2500, 2023 GMC Sierra 3500, 2024 Chevrolet Silverado 2500, 2024 GMC Sierra 2500, 2024 Chevrolet Silverado 3500, 2024 GMC Sierra 3500, 2025 GMC Sierra 2500, 2025 Chevrolet Silverado 3500, 2025 GMC Sierra 3500, 2025 Chevrolet Silverado 2500 |