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SKU: 987-24-024
Fox 2.5 Performance Series IFP HTO Front Shock for 2020-2025 GM 2500/3500 HD with 6.5-Inch Lift
The Fox 2.5 Performance Series IFP HTO Front Shock, designed specifically for 2020-2025 Chevrolet Silverado and GMC Sierra 2500HD/3500HD trucks equipped with a 6.5-inch lift. This shock delivers precise handling and durability for both on-road comfort and off-road performance, making it the go-to choice for truck enthusiasts seeking reliable suspension performance in demanding conditions. Engineered with advanced technology and built to last, this shock ensures your GM HD truck performs at its best, whether navigating highways or tackling rugged trails.
Why Choose the Fox?
This shock stands out for its ability to provide consistent damping and enhanced rebound control, thanks to Fox’s Hydraulic Top-Out (HTO) technology. The HTO system reduces harsh top-outs by forcing shock oil through a secondary shim stack, slowing down the shock shaft speed for a smoother ride especially beneficial for trucks with heavier, aggressive tires or lifted suspensions. The 2.5-inch shock body, constructed from impact-extruded 6061-T6 aluminum with a Type II clear-anodized finish, offers excellent heat dissipation and corrosion resistance, ensuring long-term reliability in harsh environments.
The Internal Floating Piston (IFP) monotube design separates shock oil from the high-pressure nitrogen gas, preventing oil aeration and maintaining consistent performance. With vehicle-specific valving tailored for the 2020-2025 GM 2500/3500 HD, this shock delivers a balanced ride, improving handling and stability across various terrains. Its bolt-on design simplifies installation, requiring no modifications, making it a practical choice for DIY enthusiasts and professional installers alike.
What’s Included in Your Purchase?
- One (1) Fox 2.5 Performance Series IFP HTO Front Shock (SKU 987-24-024)
- All necessary hardware for installation, including washers, bushings, and nuts
- Limited 1-year warranty from Fox Factory, Inc., covering defects in materials and workmanship for the original retail owner
Fitment Specifications
- Year: 2020-2025
- Make: Chevrolet, GMC
- Model: Silverado 2500 HD, Silverado 3500 HD, Sierra 2500 HD, Sierra 3500 HD
- Submodels:
- Chevrolet Silverado 2500 HD: Custom, High Country, LT, LTZ, WT, ZR2
- Chevrolet Silverado 3500 HD: High Country, LT, LTZ, WT
- GMC Sierra 2500 HD: AT4, AT4X, Base, Denali, Denali Ultimate, Pro, SLE, SLT
- GMC Sierra 3500 HD: AT4, Base, Denali, Denali Ultimate, Pro, SLE, SLT
- Drive Type: 4WD
- Lift Height: 6.5 inches (designed for use with raised torsion systems requiring lower eyelet mounting; not compatible with OE mounts)
- Position: Front
- Mounting:
- Top Mount: Bar Pin
- Bottom Mount: Clevis
- Travel: 6.49 inches
- Extended Length: 21.25 inches
- Compressed Length: 14.77 inches
- Shock Body: 2.5-inch impact-extruded 6061-T6 aluminum, Type II clear-anodized
- Shaft: 5/8-inch hard chrome shaft
- Technology: Hydraulic Top-Out (HTO), Internal Floating Piston (IFP), high-flow velocity-sensitive damping
Key Features
- Hydraulic Top-Out (HTO) Technology: Enhances rebound control, reducing harsh top-outs for a smoother, more comfortable ride, especially with heavier tires or lifted setups.
- Internal Floating Piston (IFP): Separates shock oil from nitrogen gas, eliminating aeration for consistent damping performance.
- Vehicle-Specific Valving: Custom-tuned for 2020-2025 GM 2500/3500 HD models, ensuring precise handling and ride quality.
- Durable Construction: 2.5-inch aluminum body with Type II anodized finish resists corrosion and dissipates heat effectively.
- Bolt-On Installation: Direct fit for 6.5-inch lifted GM HD trucks, with all necessary hardware included for a hassle-free install.
- Race-Proven Design: Built on Fox’s race-derived technology, re-engineered for heavy-duty truck applications.
Installation Notes
This shock is designed for straightforward bolt-on installation, requiring light to moderate mechanical skill. It is compatible with lift kits that maintain the factory-style lower eyelet mounting and is not intended for use with kits that alter OE mounts. For best results, installation by a licensed mechanic is recommended to ensure proper fitment and performance. Always verify fitment with your specific vehicle and lift kit configuration before purchase.
Vehicle Fitment Notes
- Important: This shock is designed for 2020-2025 GM 2500/3500 HD 4WD models with a 6.5-inch lift using raised torsion systems. It will not fit vehicles with stock mounts or lift kits that change OE mounting points.
- Compatible with both gas and diesel engine configurations.
- Sold individually two shocks are required for a complete front suspension upgrade.
Warranty and Support
Fox Factory, Inc. provides a limited 1-year warranty, ensuring the shock is free from defects in materials and workmanship for the original retail owner. For warranty claims or support, contact Fox Factory, Inc. at 130 Hangar Way, Watsonville, CA 95076, or visit their official website for more details.
Why This Shock Stands Out
The Fox 2.5 Performance Series IFP HTO Front Shock (SKU 987-24-024) is engineered to deliver reliable performance, blending advanced damping technology with robust construction. Its ability to handle the demands of lifted GM HD trucks, combined with easy installation and a focus on ride comfort, makes it the preferred choice for drivers who value quality and performance. Whether you’re hauling heavy loads, cruising on highways, or exploring off-road trails, this shock provides the control and durability you need.
For the best suspension upgrade for your 2020-2025 Chevrolet Silverado or GMC Sierra 2500/3500 HD with a 6.5-inch lift, choose the Fox 2.5 Performance Series IFP HTO Front Shock. Order now and transform your truck’s ride quality with confidence.
Source: Information compiled from Fox Factory, Inc. product details and fitment specifications available on their official website and verified aftermarket retailers.
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