• Fox 2.5 Performance Series IFP Front Shock - Smooth Body, 4-6 in Lift | 2020-2026 GMC Sierra 2500HD - Stateside Performance - Shocks and Struts - FOX - Fox 2.5 Performance Series IFP Front Shock - Smooth Body, 4-6 in Lift | 2020-2026 GMC Sierra 2500HD
  • Fox 2.5 Performance Series IFP Front Shock - Smooth Body, 4-6 in Lift | 2020-2026 GMC Sierra 2500HD - Stateside Performance - Shocks and Struts - FOX - Fox 2.5 Performance Series IFP Front Shock - Smooth Body, 4-6 in Lift | 2020-2026 GMC Sierra 2500HD
  • Fox 2.5 Performance Series IFP Front Shock - Smooth Body, 4-6 in Lift | 2020-2026 GMC Sierra 2500HD - Stateside Performance - Shocks and Struts - FOX - Fox 2.5 Performance Series IFP Front Shock - Smooth Body, 4-6 in Lift | 2020-2026 GMC Sierra 2500HD
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FOX987-24-033

FOX

Fox 2.5 Performance Series IFP Front Shock - Smooth Body, 4-6 in Lift | 2020-2026 GMC Sierra 2500HD

Fox 2.5 Performance Series IFP Front Shock - Smooth Body, 4-6 in Lift | 2020-2026 GMC Sierra 2500HD

$346.95 USD
$346.95 USD
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Shipping calculated at checkout.

In stock

The Fox 2.5 Performance Series Smooth Body IFP Shock fits the 2020-2026 GMC Sierra 2500HD with 4-6in of front lift and delivers race-proven damping with extended drop-out travel.

Install Difficulty: Professional Install Only
Bolts to factory shock mounts with hand tools; typically installs in 45-60 minutes per side. Professional alignment recommended after any suspension modification.

Product Overview

This is a 2.5in diameter monotube shock built with an aluminum body and a race-developed main piston. A true internal floating piston (IFP) separates gas and oil for consistent, fade-resistant damping.

The application-specific valving reduces body sway on-road while extending off-road travel. Aluminum dissipates heat four times better than steel, and every Fox shock is fully serviceable.

Features & Specifications

  • Fits: 2020-2026 GMC Sierra 2500HD
  • Provides 4" of front lift
  • Designed for trucks with 4-6in of front lift
  • Hydraulic Top Out (HTO) reduces harsh top-out for a smoother ride, especially on lifted trucks or aggressive tires
  • 2.5in diameter aluminum smooth body
  • Internal floating piston (IFP) separates gas and oil
  • Race-developed main piston with application-specific valving
  • Aluminum dissipates heat 4x better than steel
  • Fully serviceable and corrosion resistant
  • Extends drop-out travel for improved off-road articulation

Fitment

This part fits the following vehicles:

Year Make Model Submodel
2020-2026 GMC Sierra 2500 HD AT4
2024-2026 GMC Sierra 2500 HD AT4X
2020-2021 GMC Sierra 2500 HD Base
2020-2026 GMC Sierra 2500 HD Denali
2024-2026 GMC Sierra 2500 HD Denali Ultimate
2022-2026 GMC Sierra 2500 HD Pro
2020-2026 GMC Sierra 2500 HD SLE
2020-2026 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