Fox Performance Series 2.5 Smooth Body IFP Rear Shock - 4-6 in Lift | 2020-2026 GMC Sierra 3500HD

The Fox 2.5 Performance Series Smooth Body IFP Rear Shock fits the 2020-2026 GMC Sierra 3500HD and is tuned for trucks running 4-6in of rear lift.

It extends drop-out travel for off-road capability while keeping on-road ride connected and controlled.

Product Overview

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

The aluminum body dissipates heat four times better than steel, and the shock is fully serviceable and corrosion-resistant.

Application-specific valving pairs the extended travel with performance damping to reduce body sway on your lifted 3500HD.

Features & Specifications

• Fits: 2020-2026 GMC Sierra 3500HD
• Designed for trucks with 4-6in of rear lift
• Hydraulic Top Out (HTO) reduces harsh top-out for a smoother ride, especially on lifted trucks or aggressive tires
• 2.5in aluminum smooth body dissipates heat four times better than steel
• Race-developed main piston with true internal floating piston (IFP)
• Extended drop-out travel for improved off-road articulation
• Application-specific valving reduces body sway on-road
• Fully serviceable and rebuildable for long service life

Fitment

This part fits the following vehicles: