Fabtech Dirt Logic 2.25in N/R Rear Shock Absorber

2011–2019 GM 2500HD / 3500HD 2WD/4WD

Part #: FTS810892

Overview

The Fabtech Dirt Logic 2.25-inch N/R Rear Shock Absorber is designed to deliver exceptional ride quality and durability for heavy-duty trucks equipped with oversized tires. Whether you're tackling off-road trails, hauling heavy loads, or seeking improved on-road comfort, these shocks are engineered to enhance your vehicle's performance in a variety of conditions. Built with top-tier materials and innovative features, the Dirt Logic shocks provide a smooth, controlled ride while maintaining the robustness needed for demanding applications.

If you're a serious off-road enthusiast or a professional who demands reliability and performance, these shocks are an excellent upgrade over stock components. They help support increased load capacity, improve handling, and reduce body roll, all while offering a comfortable ride both on and off the pavement. With their advanced construction and rebuildable design, the Dirt Logic shocks are a long-term investment in your vehicle's suspension system.

Key Features

The Fabtech Dirt Logic shocks incorporate several advanced features to ensure maximum performance and longevity:

• Constructed with a 304 stainless steel body that provides superior corrosion resistance, making them ideal for off-road adventures and harsh environments.
• Reservoir style design includes a billet aluminum reservoir that helps dissipate heat more effectively, maintaining optimal shock performance during extended use or demanding conditions.
• The black NitroSteel piston rod is engineered for maximum durability, resisting rock chipping and surface damage to extend service life and maintain consistent damping characteristics.
• Rebuildable design allows for custom valving adjustments, enabling you to tailor the shocks to your specific driving style or application, whether for off-road racing, towing, or daily driving.
• Precision-machined components and high-quality construction ensure a reliable, long-lasting suspension upgrade.
• Designed to improve ride quality both on and off-road, providing better control, comfort, and handling in a variety of terrains.
• Enhanced damping characteristics support increased load capacity and help reduce vehicle body roll during cornering.
• Easy bolt-on installation using factory mounting points, with no need for modifications or additional tuning for most applications.

Construction & Design

The Dirt Logic 2.25-inch shocks feature a robust construction designed for demanding use. The 304 stainless steel body offers excellent corrosion resistance, ensuring longevity even in muddy, salty, or humid environments. The reservoir style design incorporates a billet aluminum reservoir, which not only adds to the shock's durability but also improves heat dissipation during extended off-road sessions or heavy-duty towing. The NitroSteel piston rod is manufactured with a super-hard coating, providing resistance to rock chips and surface damage, which helps maintain consistent damping performance over time.

Every component is precision-machined and TIG-welded for strength and reliability. The shocks are engineered with a focus on smooth operation, reduced fade, and consistent damping, making them suitable for both aggressive off-road driving and everyday use. Their design ensures a perfect fit and function, providing a significant upgrade over factory shocks in terms of durability, performance, and ride quality.

Performance & Sound

The Fabtech Dirt Logic shocks are engineered to deliver a noticeable improvement in ride quality and handling. Their advanced damping technology helps absorb bumps and vibrations, resulting in a smoother ride on rough terrain and improved stability on paved roads. While specific horsepower or torque gains are not applicable to shocks, these components support your vehicle's suspension system in handling increased loads and aggressive driving conditions. The reservoir design helps keep the shock cooler during extended use, maintaining consistent damping performance and reducing fade.

Off-road enthusiasts will appreciate the enhanced control and reduced body roll, while daily drivers will benefit from improved comfort and stability. The shocks produce a subtle, controlled sound characteristic of high-quality off-road suspension components, without excessive noise or harshness.

Installation & Fitment

The Fabtech Dirt Logic 2.25-inch shocks are designed as direct bolt-on replacements for the factory rear shocks on 2011–2019 GM 2500HD and 3500HD trucks with 2WD or 4WD configurations. Installation is straightforward, requiring no cutting, drilling, or modifications in most cases. The shocks utilize the original mounting points and hardware, making for a clean, hassle-free upgrade. Basic hand tools and mechanical skills are sufficient for installation, and the process typically takes less than a few hours.

For optimal performance, it is recommended to inspect and replace other suspension components as needed during installation. Rebuilding or revalving the shocks can be performed if desired, allowing for further customization based on your specific driving needs.

What's Included

• One pair of Fabtech Dirt Logic 2.25-inch N/R Rear Shock Absorbers
• All necessary mounting hardware and bushings
• Installation instructions

Ideal For

• Off-road enthusiasts seeking durable, high-performance shocks
• Heavy-duty trucks requiring improved load handling and ride comfort
• Owners looking to upgrade from factory shocks for better off-road capability
• Professionals and hobbyists who value rebuildability and custom valving options