FOX 2.5 Performance Smooth Body HTO 4-6″ Rear Lift IFP Shocks for 2017-2025 Ford F-250 4WD

Description
FOX 2.5 Performance Smooth Body HTO 4-6″ Rear Lift IFP Shocks for 2017-2025 Ford F-250 4WD

FOX 2.5 Performance Smooth Body HTO 4-6 inches Rear Lift IFP Shocks for 2017-2025 Ford F-250 4WD

Part Number: 987-24-021

Summary: The FOX 2.5 Performance Series HTO is a bolt-on shock solution designed to enhance the handling of Ford F-250 trucks with 4-6 inches of rear lift. Featuring an Internal Floating Piston (IFP) and a 2.5-inch aluminum body, these shocks are engineered to manage heat and provide consistent damping performance. The inclusion of Hydraulic Top Out (HTO) technology addresses the harsh rebound often associated with heavier tires and lifted suspension setups, ensuring a more controlled and comfortable ride both on and off-road.

Features

• Internal Floating Piston (IFP): The IFP design separates the shock oil from the high-pressure nitrogen gas to ensure consistent damping by preventing aeration.
• Hydraulic Top Out (HTO): A secondary shim stack provides position-sensitive rebound damping to ensure a reduction in harsh top-outs during full extension.
• Aluminum Shock Body: The 2.5-inch impact-extruded 6061-T6 aluminum body provides efficient heat dissipation and Type II clear-anodized corrosion resistance to ensure long-term durability.
• Hard Chrome Shaft: A 5/8 inches hard chrome plated heat-treated alloy steel shaft provides a smooth surface and high strength to ensure reliable operation under load.

Technical Specifications

Fitment

• 2017-2025 Ford F-250 4WD
• Note: Lift: 4-6 inches

What’s Included

• Includes 2 Shocks

Why Choose This Product?

• Engineering Advantage: The 2.5-inch aluminum body and IFP technology offer superior thermal management compared to standard twin-tube or smaller diameter shocks, maintaining performance during repeated impacts.
• Performance Benefit: The specialized HTO technology provides position-sensitive control that specifically mitigates the harshness of suspension top-out, resulting in a more refined ride for lifted heavy-duty applications.

Frequently Asked Questions

What is the benefit of the Hydraulic Top Out (HTO) technology?
HTO reduces harsh top-outs by forcing shock oil through a secondary shim stack to slow down the shaft speed as the shock reaches full extension, which is especially helpful for lifted trucks with heavy tires.

How does the Internal Floating Piston (IFP) improve performance?
The IFP separates the high-pressure nitrogen gas from the shock oil, which prevents the oil from foaming (aeration) and allows for consistent, fade-free damping performance.

Is this shock compatible with a stock height truck?
No, these shocks are specifically configured for Ford F-250 4WD vehicles with 4-6 inches of rear lift height.