• Fox 2.5 Performance Series IFP Smooth Body Front Shock - 1.5-3.5 in Lift | 2015-2019 GMC Sierra 2500HD - Stateside Performance - Shocks and Struts - FOX - Fox 2.5 Performance Series IFP Smooth Body Front Shock - 1.5-3.5 in Lift | 2015-2019 GMC Sierra 2500HD
  • Fox 2.5 Performance Series IFP Smooth Body Front Shock - 1.5-3.5 in Lift | 2015-2019 GMC Sierra 2500HD - Stateside Performance - Shocks and Struts - FOX - Fox 2.5 Performance Series IFP Smooth Body Front Shock - 1.5-3.5 in Lift | 2015-2019 GMC Sierra 2500HD
  • Fox 2.5 Performance Series IFP Smooth Body Front Shock - 1.5-3.5 in Lift | 2015-2019 GMC Sierra 2500HD - Stateside Performance - Shocks and Struts - FOX - Fox 2.5 Performance Series IFP Smooth Body Front Shock - 1.5-3.5 in Lift | 2015-2019 GMC Sierra 2500HD
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FOX987-24-031

FOX

Fox 2.5 Performance Series IFP Smooth Body Front Shock - 1.5-3.5 in Lift | 2015-2019 GMC Sierra 2500HD

Fox 2.5 Performance Series IFP Smooth Body Front Shock - 1.5-3.5 in Lift | 2015-2019 GMC Sierra 2500HD

$346.95 USD
$346.95 USD
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In stock

The Fox 2.5 Performance Series Smooth Body IFP Front Shock fits the 2015-2019 GMC Sierra 2500HD and delivers extended drop-out travel with performance-tuned valving.

Install Difficulty: Professional Install Only
Front shock replacement on HD trucks requires a vehicle lift and suspension disassembly; typically takes 1-2 hours per side. Professional alignment recommended after any suspension modification.

Product Overview

This 2.5in aluminum-body shock uses a race-developed main piston and a true internal floating piston (IFP) to separate gas and oil for fade-resistant damping.

Tuned specifically for the Sierra 2500HD, it accommodates trucks with 1.5-3.5in of front lift while improving on-road comfort and reducing body sway.

The aluminum body dissipates heat 4x better than steel and the shock is fully serviceable for a long service life.

Features & Specifications

  • Fits: 2015-2019 GMC Sierra 2500HD
  • Provides 1.5-3.5" of front lift
  • Designed for trucks with 1.5-3.5in of front lift
  • Hydraulic Top Out (HTO) reduces harsh top-out for a smoother ride, especially on lifted trucks or aggressive tires
  • 2.5in smooth aluminum body
  • Race-developed main piston with internal floating piston (IFP)
  • Aluminum dissipates heat 4x better than steel
  • Extends drop-out travel for improved off-road capability
  • Performance-tuned valving reduces body sway
  • Fully serviceable and corrosion resistant

Fitment

This part fits the following vehicles:

Year Make Model Submodel
2015-2019 GMC Sierra 2500 HD Base
2015-2019 GMC Sierra 2500 HD Denali
2015-2019 GMC Sierra 2500 HD SLE
2015-2019 GMC Sierra 2500 HD SLT
⚠ Submodel Fitment: If your submodel is not listed in the fitment table above, we cannot confirm fitment. Please contact us before purchasing to verify.

Shipping & Returns

Tracking is typically provided within 3–5 business days; items shipping direct from the manufacturer may take 5–7. Some items are made to order or may be backordered. Questions about stock? Reach us through live chat or email.

Warranty

All warranties are through the manufacturer and are facilitated by Stateside Performance. Some manufacturers require the end user to contact them directly; in that case we will point you to the right contact. Email us with any warranty questions.

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  • Free shipping over $250

    Free shipping applies to items that are shipped via ground through UPS or FedEx and are over $250 going to the continental 48 states. This does not apply to Alaska or Hawaii, and does not apply to any item(s) that are shipped via freight or with any other option other than ground shipping.

    Shipping policy 

  • 30-day returns

    Returns must be requested within 30 days of delivery. Parts must be new, unused, uninstalled, and in original packaging, with an RMA. Some items are final sale.

    Return policy