{"product_id":"fox-performance-series-ifp-rear-shock-for-2020-chevrolet-silverado-2500-3500-hd-and-gmc-sierra-2500-hd","title":"Fox Performance Series IFP Rear Shock for 2020 Chevrolet Silverado 2500\/3500 HD and GMC Sierra 2500 HD","description":"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.\nApplication specific valving to maximize performance.\nIncrease 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_\n_x000D_\nConsistent 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_\n_x000D_\nBuilt-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.\n\u003cul\u003e\n  \u003cli\u003ePerformance Tuned For Vehicle Specific Application\u003c\/li\u003e\n  \u003cli\u003eIFP Separates Oil From High-Pressure Nitrogen Gas\u003c\/li\u003e\n  \u003cli\u003eFOX Racing Oil Developed For Ultimate Performance\u003c\/li\u003e\n  \u003cli\u003eRedundant Sealing System\/Long Lasting Performance\u003c\/li\u003e\n  \u003cli\u003e100% Serviceable And Tunable For Longer Lifespan\u003c\/li\u003e\n  \u003cli\u003ePacked With 35 Years Of Race Winning Technology\u003c\/li\u003e\n  \u003cli\u003eAluminum Body Dissipates Heat Faster Than Steel\u003c\/li\u003e\n  \u003cli\u003eBlack Anodized CNC Machined Aluminum Components\u003c\/li\u003e\n  \u003cli\u003eTeflon-Lined Heat-Treated Spherical Bearings\u003c\/li\u003e\n  \u003cli\u003eDurable Zinc Plated Long Lasting Finish\u003c\/li\u003e\n  \u003cli\u003eSmooth Seamless Alloy Body\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eUpgrade your heavy-duty truck with the Fox Performance Series IFP Rear Shock, part number 985-24-239, designed specifically for 2020 Chevrolet Silverado 2500\/3500 HD and GMC Sierra 2500 HD models. Featuring advanced damping control technology, this shock absorber enhances both on-road comfort and off-road handling, making it ideal for demanding driving conditions. The application-specific valving ensures optimized performance tailored to your vehicle, providing a smoother ride and improved stability. With extended drop-out travel, it boosts your truck's off-road capability, allowing for greater maneuverability over rough terrain. The shock's race-proven design delivers consistent, fade-resistant performance thanks to high-quality materials such as an aluminum body, a race-developed main piston, and a true internal floating piston (IFP) that effectively separates gas and oil for reliable operation. Built to withstand harsh environments, the Fox Performance Series shocks are fully serviceable and feature a durable zinc-plated finish, ensuring long-lasting performance. The aluminum construction dissipates heat four times more efficiently than steel, maintaining optimal damping characteristics during extended use. CNC machined aluminum components with a black anodized finish, Teflon-lined heat-treated spherical bearings, and a robust sealing system contribute to the shock's longevity and performance. Whether you're on the road or tackling tough off-road trails, this shock provides a connected ride with less sway and superior handling, backed by over 35 years of race-winning technology. Designed for easy maintenance and tunability, the Fox Performance Series IFP Rear Shock is a reliable upgrade for serious truck enthusiasts seeking durability and high performance.\u003c\/p\u003e\u003cp\u003e\u003cb\u003eFeatures:\u003c\/b\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003ePerformance Tuned For Vehicle Specific Application\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eInternal Floating Piston (IFP) Separates Oil From High-Pressure Nitrogen Gas\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eFOX Racing Oil Developed For Ultimate Performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eRedundant Sealing System Ensures Long Lasting Performance\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003e100% Serviceable And Tunable For Extended Use\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBuilt From Aluminum To Dissipate Heat Faster Than Steel\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eBlack Anodized CNC Machined Aluminum Components\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eTeflon-Lined Heat-Treated Spherical Bearings For Smooth Operation\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDurable Zinc Plated Finish Resists Corrosion\u003c\/li\u003e\u003c\/ul\u003e\u003cul\u003e\u003cli\u003eDesigned To Improve Handling And Ride Comfort In Heavy-Duty Applications\u003c\/li\u003e\u003c\/ul\u003e\u003cbr\u003e\nFitment:\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2020 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2020 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2020 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2020 GMC Sierra 2500 HD Base\u003cbr\u003e\n2020 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2020 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2020 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2020 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2020 GMC Sierra 3500 HD Base\u003cbr\u003e\n2020 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2020 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2020 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2021 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2021 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2021 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2021 GMC Sierra 2500 HD Base\u003cbr\u003e\n2021 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2021 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2021 GMC Sierra 2500 HD SLT\u003cbr\u003e\n2021 GMC Sierra 3500 HD AT4\u003cbr\u003e\n2021 GMC Sierra 3500 HD Base\u003cbr\u003e\n2021 GMC Sierra 3500 HD Denali\u003cbr\u003e\n2021 GMC Sierra 3500 HD SLE\u003cbr\u003e\n2021 GMC Sierra 3500 HD SLT\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD Custom\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD High Country\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD LT\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD LTZ\u003cbr\u003e\n2022 Chevrolet Silverado 2500 HD WT\u003cbr\u003e\n2022 Chevrolet Silverado 3500 HD High Country\u003cbr\u003e\n2022 Chevrolet Silverado 3500 HD LT\u003cbr\u003e\n2022 Chevrolet Silverado 3500 HD LTZ\u003cbr\u003e\n2022 Chevrolet Silverado 3500 HD WT\u003cbr\u003e\n2022 GMC Sierra 2500 HD AT4\u003cbr\u003e\n2022 GMC Sierra 2500 HD Base\u003cbr\u003e\n2022 GMC Sierra 2500 HD Denali\u003cbr\u003e\n2022 GMC Sierra 2500 HD SLE\u003cbr\u003e\n2022 GMC 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