Fox 1.5-3.5″ 2.0 IFP Front Lift Shocks For 2011-2019 GMC Sierra 2500HD 2WD/4WD

Description
Fox 1.5-3.5″ 2.0 IFP Front Lift Shocks For 2011-2019 GMC Sierra 2500HD 2WD/4WD

Fox 1.5-3.5 inches 2.0 IFP Front Lift Shocks For 2011-2019 GMC Sierra 2500HD 2WD/4WD

Part Number: 2×985-24-189_n2

Summary: FOX Performance Series 2.0 IFP smooth body shocks are engineered to transform the handling of your GMC Sierra 2500HD by utilizing advanced Internal Floating Piston (IFP) technology. This monotube design solves the problem of oil aeration by separating the shock fluid from the high-pressure nitrogen charge, ensuring consistent performance in varying conditions. Built with a precision metal impact aluminum body, these shocks provide increased cooling capacity and superior corrosion resistance for both on-road comfort and predictable off-road handling.

Features

• Internal Floating Piston (IFP): Monotube design separates shock oil from the high-pressure, nitrogen-charged gas chamber to provide maximum performance from factory-tuned valving and eliminate oil aeration.
• Aluminum Body: 2.0” Impact extruded and CNC machined 6061-T6 clear anodized aluminum construction provides increased cooling capacity to ensure the shock resists rust over time.
• High-Flow Piston: Race-developed piston design provides application-specific valving to ensure a predictable ride quality capable of handling rough road conditions.
• Redundant Sealing Pack: Main seal, wiper seal, and scraper seal system provides a durable barrier to ensure long-term performance and protection against the elements.
• Nitrile Rubber Bushings: Quiet nitrile rubber material provides increased suspension articulation to ensure a smooth and quiet operation.

Technical Specifications

Fitment

• 2011-2019 GMC Sierra 2500HD
• Note: Does not fit magnetic suspension. Configured for 1.5-3.5 inches lift heights.

What’s Included

• Includes 2 Shocks

Why Choose This Product?

• Engineering Advantage: The Internal Floating Piston (IFP) architecture prevents the mixing of gas and oil, which maintains damping integrity during aggressive cycling that would cause standard shocks to fade.
• Performance Benefit: Drivers experience a significant improvement in steering predictability and ride control across both highway and trail environments.

Frequently Asked Questions

What is the benefit of the IFP design?
The Internal Floating Piston (IFP) separates the oil from the nitrogen gas, which prevents oil aeration and allows the precision valving to function consistently without fading.

Will these shocks rust over time?
No, the shock body is constructed from impact-extruded 6061-T6 clear-anodized aluminum, which is naturally resistant to rust and corrosion.

Do these shocks fit trucks with magnetic suspension?
No, according to the fitment notes, these shocks are not compatible with vehicles equipped with magnetic suspension systems.