FOX 2.5 Performance Smooth Body HTO 1.5-3.5″ Front Lift IFP Shocks for 2011-2019 Chevrolet Silverado 3500HD

Description
FOX 2.5 Performance Smooth Body HTO 1.5-3.5″ Front Lift IFP Shocks for 2011-2019 Chevrolet Silverado 3500HD

FOX 2.5 Performance Smooth Body HTO 1.5-3.5 inches Front Lift IFP Shocks for 2011-2019 Chevrolet Silverado 3500HD

Part Number: 987-24-031

Summary: The FOX 2.5 Performance Series HTO is a bolt-on smooth body shock designed to enhance both on and off-road performance for the Chevrolet Silverado 3500HD. Featuring position-sensitive damping technology and an Internal Floating Piston (IFP), these shocks address the need for improved heat dissipation and consistent damping. The inclusion of Hydraulic Top Out (HTO) technology specifically targets and reduces harsh top-out events, ensuring a more controlled and comfortable ride even with heavier tires or increased lift heights.

Features

• Hydraulic Top Out (HTO): A secondary shim stack provides position-sensitive rebound damping control to slow down shock shaft speed and reduce harsh top-outs.
• Internal Floating Piston (IFP): The internal mono-tube design separates shock oil from high-pressure nitrogen to ensure optimized damping and consistent performance.
• Aluminum Shock Body: 2.5-inch impact extruded 6061-T6 aluminum with Type II clear-anodized plating provides efficient heat dissipation and corrosion resistance.
• High-Flow Valving: Velocity-sensitive damping combined with a 5/8-inch hard chrome shaft provides increased damping capacity to ensure a stable ride for lifted applications.

Technical Specifications

Fitment

• 2011-2019 Chevrolet Silverado 3500HD
• Note: Lift: 1.5-3.5 inches.

What’s Included

• Includes 2 Shocks

Why Choose This Product?

• Engineering Advantage: The 2.5-inch aluminum body offers superior heat management compared to smaller diameter steel shocks, while the HTO piston provides mechanical protection against excessive rebound force.
• Performance Benefit: Drivers experience a reduction in harsh “clunking” sensations during suspension extension, resulting in increased comfort and control on uneven terrain.

Frequently Asked Questions

What is Hydraulic Top Out (HTO) technology?
HTO technology uses a secondary shim stack to slow down the shock shaft speed as it reaches full extension, reducing harsh top-outs and improving ride comfort.

Does this shock work with a lift kit?
Yes, these shocks are specifically configured for front lift heights between 1.5 and 3.5 inches.

What are the benefits of the IFP design?
The Internal Floating Piston (IFP) separates the nitrogen gas from the shock oil, which prevents aeration and allows the shock to provide consistent damping performance.