FOX Fox 2011+ GMC Sierra 2500/3500 HD 4-6in Lift Rear 2.5 Performance Series Smooth Body IFP HTO Shock
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Fox 2011+ GMC Sierra 2500/3500 HD 4-6in Lift Rear 2.5 Performance Series Smooth Body IFP HTO Shock

FOX
FOX987-24-035
Shocks and Struts
20+ Units In Stock - Ships Next Business Day
$ 346.95
$ 346.95

SKU: 987-24-035

Fox 2011+ GMC Sierra 2500/3500 HD 4-6in Lift Rear 2.5 Performance Series Smooth Body IFP HTO Shock

Enhance rear suspension on 2011-2024 GMC Sierra 2500 HD and 3500 HD trucks equipped with 4-6 inch lift kits using this FOX 2.5 Performance Series Smooth Body shock. It extends dropout travel for greater off-road articulation while providing performance valving for reduced sway and connected on-road handling. Tuned for HD GM trucks this HTO shock separates oil and gas with an internal floating piston for consistent damping.

Key Features

  • Extended Travel Design: Adds dropout travel in 4-6in lift applications for improved off-road wheel travel and articulation without compromising ride quality
  • Performance Valving: Tuned specifically for 2011+ Sierra HD providing on-road comfort with firm control to minimize body roll and enhance stability
  • Aluminum Smooth Body: Dissipates heat four times faster than steel keeping shock performance consistent during extended hard use
  • IFP Technology: True internal floating piston prevents cavitation for fade-resistant operation with race-developed main piston
  • HTO Reservoir: High-temperature oil and external reservoir maintain viscosity and damping under extreme conditions

Product Notes

  • Sold individually pair recommended for best results
  • Fully serviceable with rebuild kits available from FOX
  • Ships in protective tube packaging

Installation Notes

  • Professional installation recommended.
  • Designed for vehicles with 4-6in rear lift kits verify lift height before install
  • Stem top mount eyelet bottom mount uses factory hardware

This Part Fits

Year Make Model Submodel
2011-2024 GMC Sierra 2500 HD Denali
2024 GMC Sierra 2500 HD Denali Ultimate
2022-2024 GMC Sierra 2500 HD Pro
2011-2024 GMC Sierra 2500 HD SLE
2011-2024 GMC Sierra 2500 HD SLT
2011-2014 GMC Sierra 2500 HD WT
2020-2024 GMC Sierra 3500 HD AT4
2011-2024 GMC Sierra 3500 HD Denali
2024 GMC Sierra 3500 HD Denali Ultimate
2022-2024 GMC Sierra 3500 HD Pro
2011-2024 GMC Sierra 3500 HD SLE
2011-2024 GMC Sierra 3500 HD SLT
2011-2014 GMC Sierra 3500 HD WT
2015-2024 Chevrolet Silverado 3500 HD High Country
2011-2024 Chevrolet Silverado 3500 HD LT
2011-2024 Chevrolet Silverado 3500 HD LTZ
2011-2024 Chevrolet Silverado 3500 HD WT
2020-2024 GMC Sierra 2500 HD AT4
2024 GMC Sierra 2500 HD AT4X
2020-2024 Chevrolet Silverado 2500 HD Custom
2015-2024 Chevrolet Silverado 2500 HD High Country
2011-2024 Chevrolet Silverado 2500 HD LT
2011-2024 Chevrolet Silverado 2500 HD LTZ
2011-2024 Chevrolet Silverado 2500 HD WT

Why Choose FOX?

  • Race-proven in off-road competition for decades
  • Aluminum construction resists corrosion and heat buildup
  • Precision engineering matches exact vehicle suspension geometry

Frequently Asked Questions

  • Q: Will this shock fit my 2019 GMC Sierra 2500 Denali with 5in lift?
    A: Yes it fits 2011-2024 Sierra 2500 HD Denali models equipped with 4-6in rear lift verify your exact lift setup
  • Q: What materials are used in construction?
    A: 2.5in diameter aluminum smooth body race-developed piston high-temp oil and IFP separator for durability
  • Q: What warranty coverage applies?
    A: FOX offers limited lifetime warranty against defects contact FOX for service or claims

Shipping & Handling

  • Method: Ground shipping UPS/FedEx
  • Availability: In stock - ships same or next business day
  • Packaging: Protective tube 27in x 6in x 6in
  • Weight: 8.1 lbs

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