FOX 2.5 Performance Smooth Body HTO 1.5-2.5″ Rear Lift IFP Shocks for 2011-2024 GMC Sierra 3500HD

Description
FOX 2.5 Performance Smooth Body HTO 1.5-2.5″ Rear Lift IFP Shocks for 2011-2024 GMC Sierra 3500HD

FOX 2.5 Performance Smooth Body HTO 1.5-2.5 inches Rear Lift IFP Shocks for 2011-2024 GMC Sierra 3500HD

Part Number: 987-24-011

Summary: The FOX 2.5 Performance Series HTO shocks are engineered for the 2011-2024 GMC Sierra 3500HD to improve both on and off-road performance through increased damping capacity. Featuring an Internal Floating Piston (IFP) and position-sensitive technology, these shocks address the harshness often associated with heavier tires and lifted applications. The 2.5-inch aluminum body effectively manages heat and corrosion while providing a significant upgrade over stock components for vehicles with 1.5-2.5 inches of rear lift.

Features

• Internal Floating Piston (IFP): The IFP design 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.
• Aluminum Shock Body: The 2.5-inch impact extruded 6061-T6 aluminum construction with Type II clear-anodizing provides efficient heat dissipation and prevents corrosion.
• High-Flow Piston: Velocity-sensitive damping is paired with a larger piston size to ensure improved control and ride comfort across various terrains.

Technical Specifications

Fitment

• 2011-2024 GMC Sierra 3500HD
• Note: Lift: 1.5-2.5 inches

What’s Included

• Includes 2 Shocks

Why Choose This Product?

• Engineering Advantage: The Hydraulic Top Out (HTO) technology manages rebound energy by forcing oil through a secondary shim stack, which is specifically designed to handle the increased mass of aggressive tires.
• Performance Benefit: Drivers experience increased comfort and reduced harshness during full extension, ensuring a controlled ride even when the suspension is pushed to its limits.

Frequently Asked Questions

What is the benefit of the HTO technology?
Hydraulic Top Out (HTO) reduces harsh top-outs and increases comfort by providing position-sensitive rebound damping control through a secondary shim stack.

How does the IFP design improve performance?
The Internal Floating Piston (IFP) separates the high-pressure nitrogen from the shock oil, which prevents aeration and ensures consistent damping performance.

Are these shocks compatible with my lift kit?
These shocks are specifically designed for GMC Sierra 3500HD models equipped with 1.5 to 2.5 inches of rear lift.