FOX 2.5 Performance Smooth Body HTO 1.5-3.5″ Front Lift IFP Shocks for 2011-2019 GMC Sierra 2500HD

Description
FOX 2.5 Performance Smooth Body HTO 1.5-3.5″ Front Lift IFP Shocks for 2011-2019 GMC Sierra 2500HD

FOX 2.5 Performance Smooth Body HTO 1.5-3.5 inches Front Lift IFP Shocks for 2011-2019 GMC Sierra 2500HD

Part Number: 987-24-031

Summary: The FOX 2.5 Performance Series HTO is a specialized bolt-on shock designed to enhance the handling of lifted GMC Sierra 2500HD trucks. Featuring position-sensitive damping technology, these shocks address the common issue of harsh top-outs often experienced with increased ride heights and heavier tire combinations. By utilizing a 2.5-inch aluminum body and vehicle-specific valving, these shocks provide improved heat dissipation and consistent damping performance across varying terrain.

Features

• Hydraulic Top Out (HTO): A secondary shim stack provides position-sensitive rebound damping control to slow shock shaft speed and reduce harsh top-outs.
• Internal Floating Piston (IFP): The internal design separates shock oil from high-pressure nitrogen to eliminate oil aeration and optimize damping performance.
• Aluminum Shock Body: The 2.5-inch impact-extruded 6061-T6 aluminum body with Type II clear-anodized plating provides efficient heat dissipation and corrosion resistance.
• High-Flow Velocity-Sensitive Damping: Vehicle-specific valving provides rapid response to terrain changes to ensure a controlled ride on and off-road.

Technical Specifications

Fitment

• 2011-2019 GMC Sierra 2500HD
• Note: Lift: 1.5-3.5 inches

What’s Included

• Includes 2 Shocks

Why Choose This Product?

• Engineering Advantage: The integration of Hydraulic Top Out (HTO) technology provides a mechanical solution to rebound energy, utilizing a secondary shim stack to manage shaft speed at the end of the stroke.
• Performance Benefit: Drivers experience increased comfort and reduced harshness, particularly when navigating technical terrain with heavier, aggressive tires.

Frequently Asked Questions

What is the benefit of the HTO technology?
Hydraulic Top Out (HTO) technology reduces harsh top-outs by forcing shock oil through a secondary shim stack, which is especially beneficial for vehicles with heavier tires or higher lifts.

Does this shock come with an Internal Floating Piston (IFP)?
Yes, the 2.5-inch shock body features an Internal Floating Piston (IFP) to separate the shock oil from the high-pressure nitrogen.

What lift height is this shock compatible with?
These shocks are specifically designed for GMC Sierra 2500HD models with 1.5 to 3.5 inches of front lift.