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HomeShopShocks and StrutsFOX Performance Series IFP Rear Shock for GM 2500/3500 HD – Part #985-24-239
FOX Performance Series IFP Rear Shock for GM 2500/3500 HD - Part #985-24-239
FOX Performance Series IFP Rear Shock for GM 2500/3500 HD - Part #985-24-239 - Image 2
FOX Performance Series IFP Rear Shock for GM 2500/3500 HD - Part #985-24-239 - Image 3
FOX Performance Series IFP Rear Shock for GM 2500/3500 HD - Part #985-24-239 - Image 4
FOX Performance Series IFP Rear Shock for GM 2500/3500 HD - Part #985-24-239 - Image 5
FOX Performance Series IFP Rear Shock for GM 2500/3500 HD - Part #985-24-239 - Image 6
FOX Performance Series IFP Rear Shock for GM 2500/3500 HD - Part #985-24-239 - Image 7
FOX Performance Series IFP Rear Shock for GM 2500/3500 HD - Part #985-24-239 - Image 8
FOX Performance Series IFP Rear Shock for GM 2500/3500 HD - Part #985-24-239 - Image 9

FOX Performance Series IFP Rear Shock for GM 2500/3500 HD – Part #985-24-239

SKU: 985-24-239

$229.95

In stock

62 in stock

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_ 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_ 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.
  • Performance Tuned For Vehicle Specific Application
  • IFP Separates Oil From High-Pressure Nitrogen Gas
  • FOX Racing Oil Developed For Ultimate Performance
  • Redundant Sealing System/Long Lasting Performance
  • 100% Serviceable And Tunable For Longer Lifespan
  • Packed With 35 Years Of Race Winning Technology
  • Aluminum Body Dissipates Heat Faster Than Steel
  • Black Anodized CNC Machined Aluminum Components
  • Teflon-Lined Heat-Treated Spherical Bearings
  • Durable Zinc Plated Long Lasting Finish
  • Smooth Seamless Alloy Body
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Description

Upgrade your GMC Sierra 2500 HD or Chevrolet Silverado 2500/3500 HD with the FOX Performance Series IFP Rear Shock, designed for optimal off-road and on-road performance. Featuring advanced shock technology, these shocks incorporate application-specific valving to ensure a smooth and predictable ride whether navigating rugged terrain or smooth highways. The use of race-proven damping control offers a balance of comfort and handling, making them ideal for drivers seeking enhanced vehicle capability and reliability.
Constructed with high-quality materials, the FOX Performance Series shocks boast aluminum bodies that dissipate heat four times faster than steel, ensuring consistent performance even during demanding off-road adventures. The internal floating piston (IFP) design separates gas and oil for fade-resistant operation, while the race-developed main piston enhances damping response. These shocks are fully serviceable and tunable, allowing for personalized adjustments that extend their lifespan and performance.
The shocks feature a durable zinc-plated finish, Teflon-lined heat-treated spherical bearings, and black anodized CNC-machined aluminum components, combining durability with corrosion resistance. Designed specifically for your vehicle, these shocks improve off-road capability by increasing droop travel and provide on-road comfort with less vehicle sway. Whether used for daily driving or intense off-road excursions, the FOX Performance Series shocks deliver a reliable, race-inspired performance backed by over 35 years of technological innovation.

Features:

  • Performance tuned specifically for GM 2500/3500 HD applications
  • Internal floating piston (IFP) separates oil from high-pressure nitrogen gas for fade resistance
  • Race-developed main piston for optimal damping control
  • Aluminum body dissipates heat four times faster than steel
  • Fully serviceable and tunable for extended lifespan
  • Durable zinc-plated finish resists corrosion and harsh environments
  • Teflon-lined heat-treated spherical bearings enhance durability
  • Black anodized CNC-machined aluminum components for strength and corrosion resistance
  • Damps rough terrain and improves vehicle handling both on and off-road
  • Extends droop travel to increase off-road capability

Fitment:
Chevrolet Silverado 2500 HD Custom 2020
Chevrolet Silverado 2500 HD Custom 2021
Chevrolet Silverado 2500 HD Custom 2022
Chevrolet Silverado 2500 HD Custom 2023
Chevrolet Silverado 2500 HD Custom 2024
Chevrolet Silverado 2500 HD Custom 2025
Chevrolet Silverado 2500 HD High Country 2020
Chevrolet Silverado 2500 HD High Country 2021
Chevrolet Silverado 2500 HD High Country 2022
Chevrolet Silverado 2500 HD High Country 2023
Chevrolet Silverado 2500 HD High Country 2024
Chevrolet Silverado 2500 HD High Country 2025
Chevrolet Silverado 2500 HD LT 2020
Chevrolet Silverado 2500 HD LT 2021
Chevrolet Silverado 2500 HD LT 2022
Chevrolet Silverado 2500 HD LT 2023
Chevrolet Silverado 2500 HD LT 2024
Chevrolet Silverado 2500 HD LT 2025
Chevrolet Silverado 2500 HD LTZ 2020
Chevrolet Silverado 2500 HD LTZ 2021
Chevrolet Silverado 2500 HD LTZ 2022
Chevrolet Silverado 2500 HD LTZ 2023
Chevrolet Silverado 2500 HD LTZ 2024
Chevrolet Silverado 2500 HD LTZ 2025
Chevrolet Silverado 2500 HD WT 2020
Chevrolet Silverado 2500 HD WT 2021
Chevrolet Silverado 2500 HD WT 2022
Chevrolet Silverado 2500 HD WT 2023
Chevrolet Silverado 2500 HD WT 2024
Chevrolet Silverado 2500 HD WT 2025
Chevrolet Silverado 2500 HD ZR2 2024
Chevrolet Silverado 2500 HD ZR2 2025
Chevrolet Silverado 3500 HD High Country 2020
Chevrolet Silverado 3500 HD High Country 2021
Chevrolet Silverado 3500 HD High Country 2022
Chevrolet Silverado 3500 HD High Country 2023
Chevrolet Silverado 3500 HD High Country 2024
Chevrolet Silverado 3500 HD High Country 2025
Chevrolet Silverado 3500 HD LT 2020
Chevrolet Silverado 3500 HD LT 2021
Chevrolet Silverado 3500 HD LT 2022
Chevrolet Silverado 3500 HD LT 2023
Chevrolet Silverado 3500 HD LT 2024
Chevrolet Silverado 3500 HD LT 2025
Chevrolet Silverado 3500 HD LTZ 2020
Chevrolet Silverado 3500 HD LTZ 2021
Chevrolet Silverado 3500 HD LTZ 2022
Chevrolet Silverado 3500 HD LTZ 2023
Chevrolet Silverado 3500 HD LTZ 2024
Chevrolet Silverado 3500 HD LTZ 2025
Chevrolet Silverado 3500 HD WT 2020
Chevrolet Silverado 3500 HD WT 2021
Chevrolet Silverado 3500 HD WT 2022
Chevrolet Silverado 3500 HD WT 2023
Chevrolet Silverado 3500 HD WT 2024
Chevrolet Silverado 3500 HD WT 2025
GMC Sierra 2500 HD AT4 2020
GMC Sierra 2500 HD AT4 2021
GMC Sierra 2500 HD AT4 2022
GMC Sierra 2500 HD AT4 2023
GMC Sierra 2500 HD AT4 2024
GMC Sierra 2500 HD AT4 2025
GMC Sierra 2500 HD AT4X 2024
GMC Sierra 2500 HD AT4X 2025
GMC Sierra 2500 HD Base 2020
GMC Sierra 2500 HD Base 2021
GMC Sierra 2500 HD Base 2022
GMC Sierra 2500 HD Denali 2020
GMC Sierra 2500 HD Denali 2021
GMC Sierra 2500 HD Denali 2022
GMC Sierra 2500 HD Denali 2023
GMC Sierra 2500 HD Denali 2024
GMC Sierra 2500 HD Denali 2025
GMC Sierra 2500 HD Denali Ultimate 2024
GMC Sierra 2500 HD Denali Ultimate 2025
GMC Sierra 2500 HD Pro 2023
GMC Sierra 2500 HD Pro 2024
GMC Sierra 2500 HD Pro 2025
GMC Sierra 2500 HD SLE 2020
GMC Sierra 2500 HD SLE 2021
GMC Sierra 2500 HD SLE 2022
GMC Sierra 2500 HD SLE 2023
GMC Sierra 2500 HD SLE 2024
GMC Sierra 2500 HD SLE 2025
GMC Sierra 2500 HD SLT 2020
GMC Sierra 2500 HD SLT 2021
GMC Sierra 2500 HD SLT 2022
GMC Sierra 2500 HD SLT 2023
GMC Sierra 2500 HD SLT 2024
GMC Sierra 2500 HD SLT 2025
GMC Sierra 3500 HD AT4 2020
GMC Sierra 3500 HD AT4 2021
GMC Sierra 3500 HD AT4 2022
GMC Sierra 3500 HD AT4 2023
GMC Sierra 3500 HD AT4 2024
GMC Sierra 3500 HD AT4 2025
GMC Sierra 3500 HD Base 2020
GMC Sierra 3500 HD Base 2021
GMC Sierra 3500 HD Base 2022
GMC Sierra 3500 HD Denali 2020
GMC Sierra 3500 HD Denali 2021
GMC Sierra 3500 HD Denali 2022
GMC Sierra 3500 HD Denali 2023
GMC Sierra 3500 HD Denali 2024
GMC Sierra 3500 HD Denali 2025
GMC Sierra 3500 HD Denali Ultimate 2024
GMC Sierra 3500 HD Denali Ultimate 2025
GMC Sierra 3500 HD Pro 2023
GMC Sierra 3500 HD Pro 2024
GMC Sierra 3500 HD Pro 2025
GMC Sierra 3500 HD SLE 2020
GMC Sierra 3500 HD SLE 2021
GMC Sierra 3500 HD SLE 2022
GMC Sierra 3500 HD SLE 2023
GMC Sierra 3500 HD SLE 2024
GMC Sierra 3500 HD SLE 2025
GMC Sierra 3500 HD SLT 2020
GMC Sierra 3500 HD SLT 2021
GMC Sierra 3500 HD SLT 2022
GMC Sierra 3500 HD SLT 2023
GMC Sierra 3500 HD SLT 2024
GMC Sierra 3500 HD SLT 2025

Additional information

Weight 5.1 lbs
Dimensions 25.4 × 3.4 × 3.2 in
air_freight_prohibited

false
not_carb_approved

false
ltl_freight_required

false
prop_65

Y
part_type

automotive
epa

N/A
carb_acknowledgement_required

false
regular_stock

t
upc

711745591233
brand

FOX
part_number

985-24-239

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