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

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

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

Part Number: 987-24-031

Summary: The FOX 2.5 Performance Series HTO is a bolt-on shock solution designed to enhance the handling of lifted Chevrolet Silverado 2500HD trucks. This series utilizes position-sensitive technology and vehicle-specific valving to significantly improve both on and off-road performance. By incorporating larger pistons and an internal floating piston (IFP) design, these shocks provide optimized damping and efficient heat dissipation for consistent ride quality.

Features

• Hydraulic Top Out (HTO) Piston: A secondary shim stack provides position-sensitive rebound damping control to reduce harsh top-outs and increase comfort.
• Internal Floating Piston (IFP): The IFP design separates shock oil from high-pressure nitrogen to eliminate oil aeration and optimize damping performance.
• Aluminum Shock Body: A 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: Application-specific valving provides rapid response to terrain changes to ensure a controlled ride.
• Hard Chrome Shaft: A 5/8-inch hard chrome plated heat-treated alloy steel shaft provides durability to ensure long-term seal integrity.

Technical Specifications

Fitment

• 2011-2019 Chevrolet Silverado 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 and position-sensitive damping allows the shock to slow down shaft speeds specifically at the end of the rebound stroke.
• Performance Benefit: Drivers experience increased damping capacity and reduced harshness, which is particularly beneficial when running heavier, aggressive tires on lifted applications.

Frequently Asked Questions

What is the benefit of the HTO technology?
Hydraulic Top Out (HTO) technology provides position-sensitive rebound damping that slows the shock shaft speed near full extension, reducing harsh top-out sensations and improving comfort.

Does this shock accommodate a lift kit?
Yes, these shocks are specifically configured for vehicles with 1.5 to 3.5 inches of front lift.

How does the IFP design improve performance?
The Internal Floating Piston (IFP) separates the shock oil from the high-pressure nitrogen gas, preventing oil aeration and ensuring consistent, fade-free damping.