FOX 2.5 Performance Smooth Body HTO 6.5″ Front Lift IFP Shocks for 2020-2024 GMC Sierra 3500HD

Description
FOX 2.5 Performance Smooth Body HTO 6.5″ Front Lift IFP Shocks for 2020-2024 GMC Sierra 3500HD

FOX 2.5 Performance Smooth Body HTO 6.5 inches Front Lift IFP Shocks for 2020-2024 GMC Sierra 3500HD

Part Number: 987-24-024

Summary: The FOX 2.5 Performance Series HTO shocks are engineered to enhance the on and off-road performance of the GMC Sierra 3500HD. Featuring an Internal Floating Piston (IFP) and a large 2.5-inch aluminum body, these shocks are designed to separate oil from nitrogen and dissipate heat efficiently. This specific HTO configuration utilizes position-sensitive technology to provide superior rebound control for vehicles equipped with 6.5-inch front lifts.

Features

• Internal Floating Piston (IFP): An internal chamber separates the shock oil from the high-pressure nitrogen gas to provide optimized damping and consistent performance.
• 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.
• Impact Extruded 6061-T6 Aluminum Body: A 2.5-inch Type II clear-anodized body provides efficient heat dissipation and corrosion resistance to ensure long-term durability.
• Velocity-Sensitive Damping: High-flow valving provides rapid response to terrain changes to ensure a controlled ride on and off the pavement.

Technical Specifications

Fitment

• 2020-2024 GMC Sierra 3500HD
• Note: Lift: 6.5 inches For Use With Raised Torsion Systems That Require Lower Eyelet Mounting. Will Not Fit OE Mounts.

What’s Included

• Includes 2 Shocks

Why Choose This Product?

• Engineering Advantage: The Internal Floating Piston (IFP) design eliminates oil aeration, while the Hydraulic Top Out (HTO) system manages the increased mass of heavier tires and lift kits through specialized rebound damping.
• Performance Benefit: Drivers experience increased comfort and reduced harshness during full suspension extension, particularly in applications lifted higher than OEM specifications.

Frequently Asked Questions

Will these shocks fit a stock height GMC Sierra 3500HD?
No, these shocks are specifically configured for vehicles with a 6.5-inch front lift and require raised torsion systems that use lower eyelet mounting.

What is the benefit of the Hydraulic Top Out (HTO) technology?
HTO technology reduces harsh top-outs by forcing shock oil through a secondary shim stack, which slows the shaft speed as the suspension reaches full extension.

Are these shocks resistant to rust?
Yes, the shocks feature a 6061-T6 aluminum body with Type II clear-anodized plating to prevent corrosion and efficiently dissipate heat.