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🧾 Overview
The FOX 2.0 Performance Series IFP Rear Shock delivers race-proven damping performance in a direct bolt-on upgrade for 2001–2026 GM HD Silverado and Sierra 2500/3500 trucks. Designed for stock height up to a 1" rear block or airbag setup, this shock improves stability, control, and ride comfort without sacrificing everyday drivability.
Built with FOX’s Internal Floating Piston (IFP) monotube design, the 2.0 Performance Series separates oil from nitrogen to eliminate aeration and reduce fade. The result is consistent damping performance on-road, while towing, or during light off-road use.
✔ Direct replacement rear shock
✔ Compatible with stock height or 0–1" rear lift
✔ IFP monotube design for consistent damping
✔ Sold individually
🛠 Installation
- Direct bolt-on installation.
- No cutting or welding required.
- Professional installation recommended.
📌 Specs
- Key Features & Benefits
- FOX 2.0 Performance Series Shock
- 6061-T6 Aluminum Shock Body
- Internal Floating Piston (IFP) Monotube Design
- Vehicle-Specific Valving for GM HD
- Improved Stability and Ride Control
📘 Specifications
- Position: Rear
- Lift Compatibility: 0"–1"
- Collapsed Length: 16.25"
- Extended Length: 25.85"
- Shock Type: IFP Monotube
- Sold As: Single
📦 What’s Included (What’s in the Box)
- (1) FOX 2.0 Performance Series Rear Shock – AX664
- FOX Part # 980-24-664
🛡 Warranty
- Covered under The Axiom No-Nonsense Lifetime Warranty.
- Warrantied for life to the original purchaser against manufacturer defects, premature wear, or breakage.
- Push it to the limit—we don’t care. If the part lets you down, we will make it up to you.
⚠️ Fitment Notes
- 2001–2026 Chevrolet Silverado 2500HD
- 2001–2026 Chevrolet Silverado 3500HD
- 2001–2026 GMC Sierra 2500HD
- 2001–2026 GMC Sierra 3500HD
⚠️ Fitment Notes
- Rear shock only
- Designed for stock height up to 1" rear block or airbag
- Compatible with factory suspension and most leveling kits