Fabtech Uniball Upper Control Arm System

2011–2019 GM C/K2500HD / 3500HD 4WD / 4x4 with 3.5-inch Lift

Part #: FTS21130

Overview

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

Whether you're tackling rugged terrain, towing heavy loads, or seeking improved ride quality on and off the pavement, this control arm system provides a significant upgrade over stock components. The system features heavy-duty construction and precision engineering to ensure long-lasting performance and reliable alignment, even under demanding conditions.

Key Features

The Fabtech Uniball Upper Control Arm System incorporates advanced design and high-quality materials to deliver superior performance and durability. Key features include:

• Heavy-duty uniball joints that provide increased articulation and strength compared to traditional ball joints, allowing for greater wheel travel and improved off-road capability.
• Precision-machined aluminum and steel components that resist corrosion and withstand harsh environments, ensuring longevity and consistent performance.
• Extended length control arms that restore proper suspension geometry after lifting, helping to maintain factory-like handling and steering response.
• Designed specifically for 3.5-inch lift applications, ensuring optimal fitment and alignment for larger tires and improved ground clearance.
• Manufactured in the United States, reflecting Fabtech's commitment to quality and craftsmanship.
• Includes all necessary hardware and mounting components for a straightforward installation process.
• Enhanced durability for off-road adventures, towing, and heavy-duty use, making it suitable for work trucks and recreational vehicles alike.
• Improved suspension articulation and stability, leading to better control and confidence on challenging terrains.
• Optimized for a smooth ride and responsive handling, even with increased lift and larger tires.

Construction & Design

The control arms are constructed from high-strength steel and aluminum, combining durability with lightweight performance. The uniball joints are sealed and protected to prevent dirt, mud, and debris from compromising their integrity, ensuring consistent movement and long service life. The design features a robust, one-piece construction that resists bending and flexing under load.

Precision engineering and CAD development ensure a perfect fit and alignment, reducing the need for additional modifications. The system's design maintains factory-like steering geometry, which helps preserve steering feel and minimizes uneven tire wear. The components are finished with a durable coating to resist corrosion and environmental damage, making them suitable for all climates and conditions.

Performance & Sound

With the Fabtech Uniball Upper Control Arm System installed, you will notice improved wheel articulation, better handling, and enhanced off-road capability. The uniball joints provide increased flexibility and strength, allowing your suspension to absorb impacts more effectively. This results in a smoother ride over rough terrain and improved stability during aggressive driving.

While this system is primarily designed for performance and durability, it also contributes to a more confident driving experience by maintaining proper suspension geometry and alignment. The upgraded control arms help support larger tires, which can improve traction and ground clearance for off-road adventures.

Installation & Fitment

The Fabtech 3.5-inch HD Uniball Upper Control Arm System is a bolt-on upgrade that is designed for straightforward installation. It uses the factory mounting points and does not require cutting or welding. Basic mechanical skills and standard hand tools are sufficient for installation, and a professional alignment is recommended afterward to ensure optimal handling and tire wear.

Due to the precise engineering and high-quality components, the system provides a secure fit and reliable performance right out of the box. The installation process typically involves removing the stock control arms and replacing them with the new Fabtech units, making it an accessible upgrade for most experienced DIY enthusiasts and professional installers.

What's Included

• Two heavy-duty uniball upper control arms
• All necessary mounting hardware and bolts
• Installation instructions and technical documentation

Ideal For

• Off-road enthusiasts seeking increased wheel travel and durability
• Heavy-duty truck owners who regularly tow or carry heavy loads
• Performance-minded drivers looking to improve handling after lifting their truck
• Recreational users who require reliable suspension components for challenging terrains

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 and vehicle modifications before installation.