Fabtech Ultimate Suspension System

2011–2019 GM C/K2500HD / 3500HD 6.6L Duramax Diesel / 6.0L Gas Engine

Part #: FTS21108

Overview

The Fabtech 3.5-inch Ultimate Suspension System for the GM C/K2500HD and 3500HD trucks is designed to elevate your vehicle's off-road capability and on-road comfort. Built specifically for models from 2011 to 2019, this comprehensive suspension upgrade enhances ground clearance, stability, and load-carrying capacity, making it an ideal choice for enthusiasts who demand durability and performance.

Whether you're tackling rugged trails, hauling heavy loads, or simply looking to improve your truck's stance and handling, this system provides a significant upgrade over the factory suspension. With engineered precision and high-quality components, you'll enjoy improved ride quality, better wheel articulation, and a commanding presence on the road or off-road terrain.

Key Features

The Fabtech Ultimate Suspension System incorporates advanced engineering and premium materials to deliver unmatched performance and durability. Key features include:

• Heavy-duty steel components designed for maximum strength and longevity, capable of supporting increased payloads and off-road abuse.
• 3.5-inch lift height achieved through a combination of lifted coil springs, control arms, and upgraded shocks, providing additional ground clearance for larger tires and improved approach/departure angles.
• High-performance shocks engineered for both on-road comfort and off-road responsiveness, reducing body roll and enhancing stability during aggressive driving.
• Precision-tuned geometry to maintain factory-like handling characteristics while accommodating the increased ride height.
• Corrosion-resistant finishes and USA-made construction ensure long-lasting performance in harsh environments.
• Designed for easy bolt-on installation with minimal modifications required, allowing you to upgrade your suspension without extensive downtime.
• Optimized for use with larger tires, supporting aggressive off-road tires up to 35 inches in diameter for enhanced traction and capability.
• Includes all necessary components for a complete installation, ensuring a seamless upgrade process.

Construction & Design

The Fabtech suspension system features a robust design utilizing high-strength steel and precision manufacturing techniques. The control arms are constructed from durable steel with CAD-designed geometry to ensure proper alignment and handling. The shocks are specifically valved for this lift height, providing a smooth ride both on and off the pavement.

The system's components are finished with corrosion-resistant coatings, making them suitable for off-road adventures and adverse weather conditions. The kit's design emphasizes ease of installation, with many parts directly replacing factory components, ensuring a secure fit and reliable performance.

Performance & Sound

With this suspension upgrade, you'll notice improved ride quality, enhanced stability, and increased ground clearance. The system supports larger tires, which not only boost off-road traction but also give your truck a more aggressive stance. The upgraded shocks help absorb bumps and rough terrain, reducing driver fatigue and vehicle stress.

Installation & Fitment

The Fabtech Ultimate Suspension System is a bolt-on upgrade designed for straightforward installation. Most components directly replace factory parts, and no extensive modifications are necessary. Basic mechanical skills and standard tools are sufficient for installation, which can typically be completed within a few hours. No cutting, drilling, or tuning is required, allowing you to enjoy your upgraded suspension quickly and with confidence.

• Designed specifically for 2011–2019 GM C/K2500HD and 3500HD trucks with 6.6L Duramax Diesel or 6.0L Gas engines.
• Compatible with factory wheels and tires up to 35 inches in diameter.
• Includes all necessary hardware and instructions for a complete, hassle-free installation.

What's Included

• Front coil springs and control arms
• Rear lift blocks and shocks
• All mounting hardware and brackets
• Detailed installation instructions

Ideal For

• Off-road enthusiasts seeking increased ground clearance and durability
• Heavy-duty truck owners who require enhanced load-carrying capacity
• Drivers looking to improve their vehicle's stance and handling
• Anyone wanting a reliable, high-quality suspension upgrade for daily driving and off-road adventures

Emissions Note

This suspension system is designed for off-road use and may not be street-legal in all areas. Please check local regulations before installation. The system does not affect emissions compliance and is intended for use in accordance with applicable laws.