Fabtech Uniball Upper Control Arm System

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

Part #: FTS21188

Overview

The Fabtech 3.5-inch HD Uniball Upper Control Arm System with Stealth Shocks is a high-performance suspension upgrade designed specifically for heavy-duty GM trucks, including the C/K2500HD and 3500HD models from 2011 to 2019. Built to enhance off-road capability, improve handling, and support larger tires, this system is ideal for enthusiasts who demand durability and superior performance from their trucks.

Whether you're tackling rugged trails, hauling heavy loads, or simply seeking a more aggressive stance and improved ride quality, this control arm system provides the strength and precision needed to elevate your vehicle's capabilities. The combination of heavy-duty components and advanced shock technology ensures your truck remains stable and responsive under demanding conditions.

Key Features

This control arm system features a robust design engineered for off-road and heavy-duty applications. Crafted in the United States, the components are built with quality materials to withstand harsh environments and rigorous use.

• Heavy-Duty Uniball Upper Control Arms: Constructed with durable steel and equipped with high-performance uniballs, these control arms provide increased articulation and strength compared to stock arms, allowing for greater wheel travel and improved off-road performance.
• Stealth Shocks: The included stealth shocks are designed for a smooth, controlled ride, offering excellent damping characteristics to handle rough terrain while maintaining on-road comfort.
• Enhanced Suspension Geometry: The system corrects and maintains proper alignment angles after lift installation, ensuring optimal tire wear and handling.
• Corrosion-Resistant Finish: All components feature a protective coating to resist rust and corrosion, extending the lifespan of your suspension upgrade.
• Precision Engineering: Designed with CAD technology and TIG welding, these control arms deliver precise fitment and durability.
• Supports Larger Tires: The 3.5-inch lift provides additional clearance for larger tires, enhancing off-road traction and appearance.
• Easy Installation: Designed as a bolt-on upgrade, this system requires no cutting or extensive modifications, making it accessible for experienced DIY enthusiasts and professional installers alike.

Construction & Design

The Fabtech Uniball Upper Control Arm System is built with heavy-duty steel components that are TIG-welded for maximum strength and durability. The control arms feature a high-clearance design, allowing for increased wheel travel and better articulation over obstacles. The uniballs are sealed and protected to prevent dirt and debris ingress, ensuring long-lasting performance.

The stealth shocks are engineered with a monotube design, providing consistent damping and heat dissipation for reliable performance under demanding conditions. The system's design maintains factory-like fitment while offering significant improvements in suspension articulation and stability.

Performance & Sound

With this upgrade, you will notice improved off-road capability, including increased wheel travel and better handling over rough terrain. The system helps support larger tires, giving your truck a more aggressive stance and enhanced traction. The shocks deliver a smooth, controlled ride, reducing body roll and improving overall stability. While primarily focused on performance and durability, the system also contributes to a more commanding and confident driving experience.

Installation & Fitment

The Fabtech 3.5-inch HD Uniball Upper Control Arm System is designed for a straightforward bolt-on installation. It mounts directly to factory mounting points, requiring no cutting, drilling, or major modifications. Basic hand tools and mechanical skills are sufficient for installation, although professional installation is recommended for optimal results. Proper alignment after installation is advised to ensure maximum performance and tire life.

• Designed specifically for 2011–2019 GM C/K2500HD and 3500HD trucks
• Supports 3.5-inch lift height
• Includes all necessary hardware and components for a complete upgrade

What's Included

• Heavy-duty uniball upper control arms (driver and passenger side)
• Stealth shocks (front)
• All mounting hardware and brackets
• Installation instructions

Ideal For

This control arm system is perfect for off-road enthusiasts, heavy-duty truck owners, and those looking to improve their vehicle's suspension performance. It is well-suited for trail riding, towing, and daily driving with an emphasis on durability and handling under demanding conditions.

Emissions Note

This product is designed for off-road use and may not be legal for street use in all areas. Please check local regulations regarding emissions compliance before installation.