Fabtech Suspension System

2011–2019 GM 2500HD 2WD/4WD

Part #: K1121DL

Overview

The Fabtech 4" Basic Suspension System with DLSS Shocks is designed to provide a reliable and robust lift solution for your GM 2500HD pickup truck. Built with heavy-duty construction and engineered for durability, this suspension upgrade enhances both the appearance and off-road capability of your vehicle. Whether you're looking to improve ground clearance for off-road adventures or achieve a commanding stance on the street, this system offers a straightforward, effective solution.

Ideal for truck enthusiasts and daily drivers alike, this suspension system helps support increased ride height while maintaining factory-like handling and stability. The inclusion of high-quality components ensures long-lasting performance, making it a perfect choice for those seeking a balance of strength, function, and value.

Key Features

The Fabtech 4" Basic Suspension System incorporates several innovative features designed to optimize performance and durability:

• Heavy-duty construction utilizing 1/4-inch thick steel for the crossmember components, providing maximum strength and resistance to flex and damage during demanding off-road use.
• High arched lower control arm crossmembers that maintain the factory track width, ensuring tires stay under the fenders for a clean, OEM-like appearance and proper handling.
• Retains the factory steering geometry with ductile iron steering knuckles, which help preserve precise steering response and durability under load.
• Rear lift achieved through a simple block and U-bolt configuration, providing a reliable and cost-effective method to increase ride height without compromising ride quality.
• Designed for easy bolt-on installation, minimizing downtime and the need for extensive modifications.
• Compatible with factory or aftermarket wheels and tires, allowing for customization based on your style and performance needs.
• Includes all necessary hardware and components for a complete, hassle-free upgrade.
• Backed by Fabtech's reputation for quality and innovation in suspension systems.

Construction & Design

This suspension system features heavy-duty steel components, including 1/4-inch thick steel crossmembers that are engineered for maximum strength and longevity. The high arched design of the lower control arm crossmembers not only provides increased ground clearance but also helps maintain proper suspension geometry, which is critical for handling and tire wear. The ductile iron steering knuckles are crafted to withstand the rigors of off-road driving while preserving the factory track width, ensuring your vehicle maintains its original handling characteristics.

The rear lift is accomplished with a simple block and U-bolt setup, which is a proven method for adding height without complex modifications. All components are designed for precise fitment and ease of installation, allowing you to upgrade your suspension with confidence and minimal downtime. The system's robust construction ensures that your vehicle remains stable and reliable, whether you're on the highway or tackling rough terrain.

Performance & Sound

While this system primarily focuses on providing a durable lift and improved ground clearance, it also enhances the overall driving experience by maintaining factory-like handling and stability. The high-quality shocks included in the kit help absorb bumps and vibrations, resulting in a smoother ride both on and off-road. The increased ride height offers better approach and departure angles, making off-road obstacles easier to navigate.

Installation & Fitment

The Fabtech 4" Basic Suspension System is designed for straightforward bolt-on installation. It utilizes existing factory mounting points and requires no cutting, drilling, or extensive modifications. The system is suitable for both 2WD and 4WD GM 2500HD trucks from 2011 to 2019. Basic mechanical skills and standard tools are sufficient for installation, and detailed instructions are included to guide you through the process.

What's Included

• High arched lower control arm crossmembers
• DLSS shocks for front and rear
• Rear blocks and U-bolts
• All necessary hardware and mounting components
• Installation instructions

Ideal For

• Off-road enthusiasts seeking increased ground clearance and durability
• Truck owners looking to enhance the appearance of their GM 2500HD
• Daily drivers who want a reliable suspension upgrade without sacrificing ride quality
• Those requiring a straightforward, bolt-on lift solution