FOX Performance Series Rear Shock FOX987-24-011 for 2011+ GMC Sierra and Chevrolet Silverado 2500 HD, 1.5–2.5-Inch Lift

FOX Performance Series shocks contain the latest in shock technology to transform the performance of your Truck or SUV. They use our race-proven damping control to provide a comfortable on-road ride and predictable off-road handling in even the toughest conditions. Application specific valving to maximize performance. Increase your vehicle's off-road capability by extending drop-out travel in most applications. Experience on-road comfort with performance-minded shock valving for a connected ride with less vehicle sway. Tuned specifically for your vehicle’s application._x000D__x000D_ _x000D__x000D_ Consistent and fade-resistant performance due to high-quality materials: aluminum bodies, race-developed main piston, and a true internal floating piston (IFP) to separate gas and oil._x000D__x000D_ _x000D__x000D_ Built-to-last, torture-tested and race-proven to give a lifetime of great rides. FOX products are built from aluminum, dissipating heat four times better than conventional materials. All FOX shocks are fully serviceable and resistant to corrosion and harsh environments.

• 2.5 in. Impact Extruded 6061-T6 Aluminum Shock Body
• 2.5” Impact extruded 6061-T6 aluminum shock body
• High-flow velocity-sensitive damping
• Type II clear-anodized body plating
• Fully rebuildable and re-tunable
• Internal floating piston (IFP)
• Hydraulic Top Out (HTO) piston
• Internal Floating Piston [IFP]
• Hydraulic Top Out [HTO] Piston
• Application specific tune
• 5/8 in. Hard Chrome Shaft
• 5/8” hard chrome shaft
• Corrosion resistant

The FOX Performance Series FOX987-24-011 rear shock is engineered for lifted 2011 and newer GMC Sierra 2500 HD and Chevrolet Silverado 2500 HD trucks. Designed for applications with approximately 1.5–2.5 inches of lift, this smooth-body shock uses application-specific valving to improve ride quality, reduce vehicle sway, and provide more predictable handling on pavement and off-road terrain.

Its high-flow, velocity-sensitive damping helps maintain controlled suspension movement through changing terrain, while the internal floating piston separates nitrogen gas from shock oil for consistent, fade-resistant performance. A hydraulic top-out piston helps manage suspension extension and supports increased off-road capability by allowing additional drop-out travel in applicable installations. The aluminum body efficiently dissipates heat and resists corrosion in demanding environments.

Built for long-term serviceability, the FOX Performance Series shock features a Type II clear-anodized 6061-T6 aluminum body, a hard-chrome shaft, and a fully rebuildable and re-tunable design. The race-developed construction is intended for drivers who want a more connected ride without sacrificing durability during towing, trail use, or daily driving. This product is sold individually and should be matched with the vehicle’s suspension configuration and installation requirements.

Fitment: Designed for select 2011 GMC Sierra 2500 HD, 2011 GMC Sierra 3500 HD, and 2011 Chevrolet Silverado 3500 HD applications. Verify vehicle configuration, suspension lift, and front or rear position before ordering. Professional installation is recommended.

What's Included: One FOX Performance Series smooth-body rear shock with internal floating piston and hydraulic top-out piston.

Features:

• Application-Specific Valving: Tuned for compatible lifted GMC Sierra and Chevrolet Silverado HD applications to improve ride comfort, handling, and suspension control.
• Internal Floating Piston: Separates gas and oil to deliver consistent damping and fade-resistant performance during extended on-road or off-road use.
• Aluminum Shock Body: Impact-extruded 6061-T6 aluminum construction dissipates heat efficiently and provides corrosion resistance in harsh environments.
• Rebuildable Performance Design: Fully serviceable and re-tunable construction with a hard-chrome shaft, hydraulic top-out piston, and race-developed damping components.

Fitments:
2011 Chevrolet Silverado 2500 HD LT
2011 Chevrolet Silverado 2500 HD LTZ
2011 Chevrolet Silverado 2500 HD WT
2011 Chevrolet Silverado 3500 HD LT
2011 Chevrolet Silverado 3500 HD LTZ
2011 Chevrolet Silverado 3500 HD WT
2011 GMC Sierra 2500 HD Denali
2011 GMC Sierra 2500 HD SLE
2011 GMC Sierra 2500 HD SLT
2011 GMC Sierra 2500 HD WT
2011 GMC Sierra 3500 HD Denali
2011 GMC Sierra 3500 HD SLE
2011 GMC Sierra 3500 HD SLT
2011 GMC Sierra 3500 HD WT
2012 Chevrolet Silverado 2500 HD LT
2012 Chevrolet Silverado 2500 HD LTZ
2012 Chevrolet Silverado 2500 HD WT
2012 Chevrolet Silverado 3500 HD LT
2012 Chevrolet Silverado 3500 HD LTZ
2012 Chevrolet Silverado 3500 HD WT
2012 GMC Sierra 2500 HD Denali
2012 GMC Sierra 2500 HD SLE
2012 GMC Sierra 2500 HD SLT
2012 GMC Sierra 2500 HD WT
2012 GMC Sierra 3500 HD Denali
2012 GMC Sierra 3500 HD SLE
2012 GMC Sierra 3500 HD SLT
2012 GMC Sierra 3500 HD WT
2013 Chevrolet Silverado 2500 HD LT
2013 Chevrolet Silverado 2500 HD LTZ
2013 Chevrolet Silverado 2500 HD WT
2013 Chevrolet Silverado 3500 HD LT
2013 Chevrolet Silverado 3500 HD LTZ
2013 Chevrolet Silverado 3500 HD WT
2013 GMC Sierra 2500 HD Denali
2013 GMC Sierra 2500 HD SLE
2013 GMC Sierra 2500 HD SLT
2013 GMC Sierra 2500 HD WT
2013 GMC Sierra 3500 HD Denali
2013 GMC Sierra 3500 HD SLE
2013 GMC Sierra 3500 HD SLT
2013 GMC Sierra 3500 HD WT
2014 Chevrolet Silverado 2500 HD LT
2014 Chevrolet Silverado 2500 HD LTZ
2014 Chevrolet Silverado 2500 HD WT
2014 Chevrolet Silverado 3500 HD LT
2014 Chevrolet Silverado 3500 HD LTZ
2014 Chevrolet Silverado 3500 HD WT
2014 GMC Sierra 2500 HD Denali
2014 GMC Sierra 2500 HD SLE
2014 GMC Sierra 2500 HD SLT
2014 GMC Sierra 2500 HD WT
2014 GMC Sierra 3500 HD Denali
2014 GMC Sierra 3500 HD SLE
2014 GMC Sierra 3500 HD SLT
2014 GMC Sierra 3500 HD WT
2015 Chevrolet Silverado 2500 HD High Country
2015 Chevrolet Silverado 2500 HD LT
2015 Chevrolet Silverado 2500 HD LTZ
2015 Chevrolet Silverado 2500 HD WT
2015 Chevrolet Silverado 3500 HD High Country
2015 Chevrolet Silverado 3500 HD LT
2015 Chevrolet Silverado 3500 HD LTZ
2015 Chevrolet Silverado 3500 HD WT
2015 GMC Sierra 2500 HD Base
2015 GMC Sierra 2500 HD Denali
2015 GMC Sierra 2500 HD SLE
2015 GMC Sierra 2500 HD SLT
2015 GMC Sierra 3500 HD Base
2015 GMC Sierra 3500 HD Denali
2015 GMC Sierra 3500 HD SLE
2015 GMC Sierra 3500 HD SLT
2016 Chevrolet Silverado 2500 HD High Country
2016 Chevrolet Silverado 2500 HD LT
2016 Chevrolet Silverado 2500 HD LTZ
2016 Chevrolet Silverado 2500 HD WT
2016 Chevrolet Silverado 3500 HD High Country
2016 Chevrolet Silverado 3500 HD LT
2016 Chevrolet Silverado 3500 HD LTZ
2016 Chevrolet Silverado 3500 HD WT
2016 GMC Sierra 2500 HD Base
2016 GMC Sierra 2500 HD Denali
2016 GMC Sierra 2500 HD SLE
2016 GMC Sierra 2500 HD SLT
2016 GMC Sierra 3500 HD Base
2016 GMC Sierra 3500 HD Denali
2016 GMC Sierra 3500 HD SLE
2016 GMC Sierra 3500 HD SLT
2017 Chevrolet Silverado 2500 HD High Country
2017 Chevrolet Silverado 2500 HD LT
2017 Chevrolet Silverado 2500 HD LTZ
2017 Chevrolet Silverado 2500 HD WT
2017 Chevrolet Silverado 3500 HD High Country
2017 Chevrolet Silverado 3500 HD LT
2017 Chevrolet Silverado 3500 HD LTZ
2017 Chevrolet Silverado 3500 HD WT
2017 GMC Sierra 2500 HD Base
2017 GMC Sierra 2500 HD Denali
2017 GMC Sierra 2500 HD SLE
2017 GMC Sierra 2500 HD SLT
2017 GMC Sierra 3500 HD Base
2017 GMC Sierra 3500 HD Denali
2017 GMC Sierra 3500 HD SLE
2017 GMC Sierra 3500 HD SLT
2018 Chevrolet Silverado 2500 HD High Country
2018 Chevrolet Silverado 2500 HD LT
2018 Chevrolet Silverado 2500 HD LTZ
2018 Chevrolet Silverado 2500 HD WT
2018 Chevrolet Silverado 3500 HD High Country
2018 Chevrolet Silverado 3500 HD LT
2018 Chevrolet Silverado 3500 HD LTZ
2018 Chevrolet Silverado 3500 HD WT
2018 GMC Sierra 2500 HD Base
2018 GMC Sierra 2500 HD Denali
2018 GMC Sierra 2500 HD SLE
2018 GMC Sierra 2500 HD SLT
2018 GMC Sierra 3500 HD Base
2018 GMC Sierra 3500 HD Denali
2018 GMC Sierra 3500 HD SLE
2018 GMC Sierra 3500 HD SLT
2019 Chevrolet Silverado 2500 HD High Country
2019 Chevrolet Silverado 2500 HD LT
2019 Chevrolet Silverado 2500 HD LTZ
2019 Chevrolet Silverado 2500 HD WT
2019 Chevrolet Silverado 3500 HD High Country
2019 Chevrolet Silverado 3500 HD LT
2019 Chevrolet Silverado 3500 HD LTZ
2019 Chevrolet Silverado 3500 HD WT
2019 GMC Sierra 2500 HD Base
2019 GMC Sierra 2500 HD Denali
2019 GMC Sierra 2500 HD SLE
2019 GMC Sierra 2500 HD SLT
2019 GMC Sierra 3500 HD Base
2019 GMC Sierra 3500 HD Denali
2019 GMC Sierra 3500 HD SLE
2019 GMC Sierra 3500 HD SLT
2020 Chevrolet Silverado 2500 HD Custom
2020 Chevrolet Silverado 2500 HD High Country
2020 Chevrolet Silverado 2500 HD LT
2020 Chevrolet Silverado 2500 HD LTZ
2020 Chevrolet Silverado 2500 HD WT
2020 Chevrolet Silverado 3500 HD High Country
2020 Chevrolet Silverado 3500 HD LT
2020 Chevrolet Silverado 3500 HD LTZ
2020 Chevrolet Silverado 3500 HD WT
2020 GMC Sierra 2500 HD AT4
2020 GMC Sierra 2500 HD Base
2020 GMC Sierra 2500 HD Denali
2020 GMC Sierra 2500 HD SLE
2020 GMC Sierra 2500 HD SLT
2020 GMC Sierra 3500 HD AT4
2020 GMC Sierra 3500 HD Base
2020 GMC Sierra 3500 HD Denali
2020 GMC Sierra 3500 HD SLE
2020 GMC Sierra 3500 HD SLT
2021 Chevrolet Silverado 2500 HD Custom
2021 Chevrolet Silverado 2500 HD High Country
2021 Chevrolet Silverado 2500 HD LT
2021 Chevrolet Silverado 2500 HD LTZ
2021 Chevrolet Silverado 2500 HD WT
2021 Chevrolet Silverado 3500 HD High Country
2021 Chevrolet Silverado 3500 HD LT
2021 Chevrolet Silverado 3500 HD LTZ
2021 Chevrolet Silverado 3500 HD WT
2021 GMC Sierra 2500 HD AT4
2021 GMC Sierra 2500 HD Base
2021 GMC Sierra 2500 HD Denali
2021 GMC Sierra 2500 HD SLE
2021 GMC Sierra 2500 HD SLT
2021 GMC Sierra 3500 HD AT4
2021 GMC Sierra 3500 HD Base
2021 GMC Sierra 3500 HD Denali
2021 GMC Sierra 3500 HD SLE
2021 GMC Sierra 3500 HD SLT
2022 Chevrolet Silverado 2500 HD Custom
2022 Chevrolet Silverado 2500 HD High Country
2022 Chevrolet Silverado 2500 HD LT
2022 Chevrolet Silverado 2500 HD LTZ
2022 Chevrolet Silverado 2500 HD WT
2022 Chevrolet Silverado 3500 HD High Country
2022 Chevrolet Silverado 3500 HD LT
2022 Chevrolet Silverado 3500 HD LTZ
2022 Chevrolet Silverado 3500 HD WT
2022 GMC Sierra 2500 HD AT4
2022 GMC Sierra 2500 HD Base
2022 GMC Sierra 2500 HD Denali
2022 GMC Sierra 2500 HD SLE
2022 GMC Sierra 2500 HD SLT
2022 GMC Sierra 3500 HD AT4
2022 GMC Sierra 3500 HD Base
2022 GMC Sierra 3500 HD Denali
2022 GMC Sierra 3500 HD SLE
2022 GMC Sierra 3500 HD SLT
2023 Chevrolet Silverado 2500 HD Custom
2023 Chevrolet Silverado 2500 HD High Country
2023 Chevrolet Silverado 2500 HD LT
2023 Chevrolet Silverado 2500 HD LTZ
2023 Chevrolet Silverado 2500 HD WT
2023 Chevrolet Silverado 3500 HD High Country
2023 Chevrolet Silverado 3500 HD LT
2023 Chevrolet Silverado 3500 HD LTZ
2023 Chevrolet Silverado 3500 HD WT
2023 GMC Sierra 2500 HD AT4
2023 GMC Sierra 2500 HD Denali
2023 GMC Sierra 2500 HD Pro
2023 GMC Sierra 2500 HD SLE
2023 GMC Sierra 2500 HD SLT
2023 GMC Sierra 3500 HD AT4
2023 GMC Sierra 3500 HD Denali
2023 GMC Sierra 3500 HD Pro
2023 GMC Sierra 3500 HD SLE
2023 GMC Sierra 3500 HD SLT
2024 Chevrolet Silverado 2500 HD Custom
2024 Chevrolet Silverado 2500 HD High Country
2024 Chevrolet Silverado 2500 HD LT
2024 Chevrolet Silverado 2500 HD LTZ
2024 Chevrolet Silverado 2500 HD WT
2024 Chevrolet Silverado 2500 HD ZR2
2024 Chevrolet Silverado 3500 HD High Country
2024 Chevrolet Silverado 3500 HD LT
2024 Chevrolet Silverado 3500 HD LTZ
2024 Chevrolet Silverado 3500 HD WT
2024 GMC Sierra 2500 HD AT4
2024 GMC Sierra 2500 HD AT4X
2024 GMC Sierra 2500 HD Denali
2024 GMC Sierra 2500 HD Denali Ultimate
2024 GMC Sierra 2500 HD Pro
2024 GMC Sierra 2500 HD SLE
2024 GMC Sierra 2500 HD SLT
2024 GMC Sierra 3500 HD AT4
2024 GMC Sierra 3500 HD Denali
2024 GMC Sierra 3500 HD Denali Ultimate
2024 GMC Sierra 3500 HD Pro
2024 GMC Sierra 3500 HD SLE
2024 GMC Sierra 3500 HD SLT
2025 Chevrolet Silverado 2500 HD Custom
2025 Chevrolet Silverado 2500 HD High Country
2025 Chevrolet Silverado 2500 HD LT
2025 Chevrolet Silverado 2500 HD LTZ
2025 Chevrolet Silverado 2500 HD WT
2025 Chevrolet Silverado 2500 HD ZR2
2025 Chevrolet Silverado 3500 HD High Country
2025 Chevrolet Silverado 3500 HD LT
2025 Chevrolet Silverado 3500 HD LTZ
2025 Chevrolet Silverado 3500 HD WT
2025 GMC Sierra 2500 HD AT4
2025 GMC Sierra 2500 HD AT4X
2025 GMC Sierra 2500 HD Denali
2025 GMC Sierra 2500 HD Denali Ultimate
2025 GMC Sierra 2500 HD Pro
2025 GMC Sierra 2500 HD SLE
2025 GMC Sierra 2500 HD SLT
2025 GMC Sierra 3500 HD AT4
2025 GMC Sierra 3500 HD Denali
2025 GMC Sierra 3500 HD Denali Ultimate
2025 GMC Sierra 3500 HD Pro
2025 GMC Sierra 3500 HD SLE
2025 GMC Sierra 3500 HD SLT
2026 Chevrolet Silverado 2500 HD Custom
2026 Chevrolet Silverado 2500 HD High Country
2026 Chevrolet Silverado 2500 HD LT
2026 Chevrolet Silverado 2500 HD LTZ
2026 Chevrolet Silverado 2500 HD WT
2026 Chevrolet Silverado 2500 HD ZR2
2026 Chevrolet Silverado 3500 HD High Country
2026 Chevrolet Silverado 3500 HD LT
2026 Chevrolet Silverado 3500 HD LTZ
2026 Chevrolet Silverado 3500 HD WT
2026 GMC Sierra 2500 HD AT4
2026 GMC Sierra 2500 HD AT4X
2026 GMC Sierra 2500 HD Denali
2026 GMC Sierra 2500 HD Denali Ultimate
2026 GMC Sierra 2500 HD Pro
2026 GMC Sierra 2500 HD SLE
2026 GMC Sierra 2500 HD SLT
2026 GMC Sierra 3500 HD AT4
2026 GMC Sierra 3500 HD Denali
2026 GMC Sierra 3500 HD Denali Ultimate
2026 GMC Sierra 3500 HD Pro
2026 GMC Sierra 3500 HD SLE
2026 GMC Sierra 3500 HD SLT

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: false
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1