FOX is a world leader in high-performance suspension systems, renowned for engineering that transforms how vehicles handle the toughest terrain. Rooted in decades of motorsport dominance, FOX brings its racing heritage to the automotive sector with a relentless drive for precision, control, and durability. From desert racing to daily driving, their suspension technology is designed to meet the demands of enthusiasts, professionals, and manufacturers alike. FOX automotive products are more than just components, they are the result of rigorous testing, advanced materials, and a deep understanding of how vehicles interact with the road and beyond. By working closely with OEMs and elite racing teams, FOX delivers solutions that balance comfort with capability, ensuring peak performance whether on the highway, in the dunes, or across rock-strewn trails.
Factory Race Series 2.5 Reservoir smooth Body shocks give you enhanced ride quality and the control you need when heading off the pavement. They take their design from our Off-Road race shocks, so they've been thoroughly perfected in brutal conditions that you will probably never see.
Our athletes push the boundaries in competition to develop race-proven performance you can bolt onto your Truck or SUV.
External Reservoir allows for increase oil and nitrogen capacity while delivering striking race look. Applications are available to fit most stock and lifted Trucks and SUVs. Our complete line of bolt-on, Factory Series shocks provide improved damping in any terrain.
Experience for yourself the incredible performance and precise control that Factory Race Series 2.5 Reservoir shocks deliver.
Features
- Performance Tuned Specifically For Raptor, Finned External Reservoir System Dissipates Heat Fast, Quick Switch Compression And Rebound Adjusters, Live Valve Terrain Adaptive Technology, Black Anodized CNC Machined Aluminum Components
- Series Factory Race
- Travel 8.97
- Rear Lift Height 0-1.5
- Body 2.5 Inch smooth bore zinc plated seamless steel Body
- Body Plating Zinc-plated and double-clear coated for long lasting finish
- Components Black-anodized, CNC-machined 6061-T6 billet aluminum
- Shaft 7/8 Inch hard chrome plated heat-treated alloy steel
- Piston Race-developed high-flow Piston design
- Valving Application-specific Valving to maximize performance
- Seals Redundant sealing pack system main seal, wiper seal, scraper seal
- Bearings PTFE-lined, heat-treated, alloy steel spherical
- Extended Length 24.83
- Compressed Length 15.86
- Top Mount ES7
- Bottom Mount ES7
Installation Notes:
Professional installation is recommended.
Specifications:
Lift Height: 0-1.5 Inch Lift.
Material: Steel.
Sold As: Pair.
Universal: No.
Shock Type: Smooth Body.
Collapsed Length: 15.86.
Extended Length: 24.83.
Shock Mount: ES7/ES7.
Series: Factory Race 2.5.
Reservoir Type: Piggyback.
Travel Length: 8.97.
Adjustable: Adjustable.
Location: Rear.
Fitment & Application:
- 2025 GMC Sierra 1500 Denali/SLE/SLT
- 2025 GMC Sierra 1500 AT4X/Denali Ultimate/Pro
- 2025 GMC Sierra 1500 AT4/Elevation
- 2025 Chevrolet Silverado 1500 ZR2
- 2025 Chevrolet Silverado 1500 PPV
- 2025 Chevrolet Silverado 1500 LT/LTZ/WT
- 2025 Chevrolet Silverado 1500 High Country
- 2025 Chevrolet Silverado 1500 Custom Trail Boss/LT Trail Boss/RST
- 2025 Chevrolet Silverado 1500 Custom
- 2024 GMC Sierra 1500 Denali/SLE/SLT
- 2024 GMC Sierra 1500 AT4X/Denali Ultimate/Pro
- 2024 GMC Sierra 1500 AT4/Elevation
- 2024 Chevrolet Silverado 1500 ZR2
- 2024 Chevrolet Silverado 1500 PPV
- 2024 Chevrolet Silverado 1500 LT/LTZ/WT
- 2024 Chevrolet Silverado 1500 High Country
- 2024 Chevrolet Silverado 1500 Custom Trail Boss/LT Trail Boss/RST
- 2024 Chevrolet Silverado 1500 Custom
- 2023 GMC Sierra 1500 Denali/SLE/SLT
- 2023 GMC Sierra 1500 AT4X/Denali Ultimate/Pro
- 2023 GMC Sierra 1500 AT4/Elevation
- 2023 Chevrolet Silverado 1500 ZR2
- 2023 Chevrolet Silverado 1500 PPV
- 2023 Chevrolet Silverado 1500 LT/LTZ/WT
- 2023 Chevrolet Silverado 1500 High Country
- 2023 Chevrolet Silverado 1500 Custom Trail Boss/LT Trail Boss/RST
- 2023 Chevrolet Silverado 1500 Custom
- 2022 GMC Sierra 1500 Denali/SLE/SLT
- 2022 GMC Sierra 1500 AT4X/Denali Ultimate/Pro
- 2022 GMC Sierra 1500 AT4/Elevation
- 2022 Chevrolet Silverado 1500 ZR2
- 2022 Chevrolet Silverado 1500 LT/LTZ/WT
- 2022 Chevrolet Silverado 1500 High Country
- 2022 Chevrolet Silverado 1500 Custom Trail Boss/LT Trail Boss/RST
- 2022 Chevrolet Silverado 1500 Custom
- 2021 GMC Sierra 1500 Denali/SLE/SLT
- 2021 GMC Sierra 1500 AT4/Elevation
- 2021 GMC Sierra 1500
- 2021 Chevrolet Silverado 1500 SSV
- 2021 Chevrolet Silverado 1500 LT/LTZ/WT
- 2021 Chevrolet Silverado 1500 High Country
- 2021 Chevrolet Silverado 1500 Custom Trail Boss/LT Trail Boss/RST
- 2021 Chevrolet Silverado 1500 Custom
- 2020 GMC Sierra 1500 Denali/SLE/SLT
- 2020 GMC Sierra 1500 AT4/Elevation
- 2020 GMC Sierra 1500
- 2020 Chevrolet Silverado 1500 SSV
- 2020 Chevrolet Silverado 1500 LT/LTZ/WT
- 2020 Chevrolet Silverado 1500 High Country
- 2020 Chevrolet Silverado 1500 Custom Trail Boss/LT Trail Boss/RST
- 2020 Chevrolet Silverado 1500 Custom
- 2019 GMC Sierra 1500 Denali/SLE/SLT
- 2019 GMC Sierra 1500 AT4/Elevation
- 2019 GMC Sierra 1500
- 2019 Chevrolet Silverado 1500 SSV
- 2019 Chevrolet Silverado 1500 LT/LTZ/WT
- 2019 Chevrolet Silverado 1500 High Country
- 2019 Chevrolet Silverado 1500 Custom Trail Boss/LT Trail Boss/RST
- 2019 Chevrolet Silverado 1500 Custom
- 2018 GMC Sierra 1500 Denali/SLE/SLT
- 2018 GMC Sierra 1500
- 2018 Chevrolet Silverado 1500 SSV
- 2018 Chevrolet Silverado 1500 LT/LTZ/WT
- 2018 Chevrolet Silverado 1500 LS
- 2018 Chevrolet Silverado 1500 High Country
- 2018 Chevrolet Silverado 1500 Custom
- 2017 GMC Sierra 1500 Denali/SLE/SLT
- 2017 GMC Sierra 1500
- 2017 Chevrolet Silverado 1500 SSV
- 2017 Chevrolet Silverado 1500 LT/LTZ/WT
- 2017 Chevrolet Silverado 1500 LS
- 2017 Chevrolet Silverado 1500 High Country
- 2017 Chevrolet Silverado 1500 Custom
- 2016 GMC Sierra 1500 Denali/SLE/SLT
- 2016 GMC Sierra 1500
- 2016 Chevrolet Silverado 1500 SSV
- 2016 Chevrolet Silverado 1500 LT/LTZ/WT
- 2016 Chevrolet Silverado 1500 LS
- 2016 Chevrolet Silverado 1500 High Country
- 2016 Chevrolet Silverado 1500 Custom
- 2015 GMC Sierra 1500 Denali/SLE/SLT
- 2015 GMC Sierra 1500
- 2015 Chevrolet Silverado 1500 SSV
- 2015 Chevrolet Silverado 1500 LT/LTZ/WT
- 2015 Chevrolet Silverado 1500 LS
- 2015 Chevrolet Silverado 1500 High Country
- 2014 GMC Sierra 1500 Denali/SLE/SLT
- 2014 GMC Sierra 1500
- 2014 Chevrolet Silverado 1500 LT/LTZ/WT
- 2014 Chevrolet Silverado 1500 High Country
- 2013 GMC Sierra 1500 XFE
- 2013 GMC Sierra 1500 SL/WT
- 2013 GMC Sierra 1500 Hybrid
- 2013 GMC Sierra 1500 Denali/SLE/SLT
- 2013 Chevrolet Silverado 1500 XFE
- 2013 Chevrolet Silverado 1500 LT/LTZ/WT
- 2013 Chevrolet Silverado 1500 LS
- 2013 Chevrolet Silverado 1500 Hybrid
- 2012 GMC Sierra 1500 XFE
- 2012 GMC Sierra 1500 SL/WT
- 2012 GMC Sierra 1500 Hybrid
- 2012 GMC Sierra 1500 Denali/SLE/SLT
- 2012 Chevrolet Silverado 1500 XFE
- 2012 Chevrolet Silverado 1500 LT/LTZ/WT
- 2012 Chevrolet Silverado 1500 LS
- 2012 Chevrolet Silverado 1500 Hybrid
- 2011 GMC Sierra 1500 XFE
- 2011 GMC Sierra 1500 SL/WT
- 2011 GMC Sierra 1500 Hybrid
- 2011 GMC Sierra 1500 Denali/SLE/SLT
- 2011 Chevrolet Silverado 1500 XFE
- 2011 Chevrolet Silverado 1500 LT/LTZ/WT
- 2011 Chevrolet Silverado 1500 LS
- 2011 Chevrolet Silverado 1500 Hybrid
- 2010 GMC Sierra 1500 XFE
- 2010 GMC Sierra 1500 SL/WT
- 2010 GMC Sierra 1500 Hybrid
- 2010 GMC Sierra 1500 Denali/SLE/SLT
- 2010 Chevrolet Silverado 1500 XFE
- 2010 Chevrolet Silverado 1500 LT/LTZ/WT
- 2010 Chevrolet Silverado 1500 LS
- 2010 Chevrolet Silverado 1500 Hybrid
- 2009 GMC Sierra 1500 SL/WT
- 2009 GMC Sierra 1500 Hybrid
- 2009 GMC Sierra 1500 Denali/SLE/SLT
- 2009 Chevrolet Silverado 1500 LT/LTZ/WT
- 2009 Chevrolet Silverado 1500 LS
- 2009 Chevrolet Silverado 1500 Hybrid
- 2008 GMC Sierra 1500 SL/WT
- 2008 GMC Sierra 1500 Denali/SLE/SLT
- 2008 Chevrolet Silverado 1500 LT/LTZ/WT
- 2008 Chevrolet Silverado 1500 LS
- 2007 GMC Sierra 1500 SL/WT
- 2007 GMC Sierra 1500 Denali/SLE/SLT
- 2007 Chevrolet Silverado 1500 LT/LTZ/WT
- 2007 Chevrolet Silverado 1500 LS
| Fitment Position | Rear |
|---|---|
| Brand | Fox |
| Part Number | FOX-88326003 |
| Shipping Method | UPS/FedEx/USPS Ground |
| California Prop 65 Warning |
|

This product can expose you to chemicals which are known to the State of California to cause cancer, birth defects or reproductive harm. For more information, visit https://www.p65warnings.ca.gov/