Fabtech 6" Radius Arm System

2005–2007 Ford F350 4WD

Part #: K20112

Overview

The Fabtech 6" Radius Arm System is a comprehensive suspension upgrade designed specifically for the Ford F350 4WD models from 2005 to 2007. Engineered to enhance off-road capability, improve ride quality, and support larger tires, this system is ideal for enthusiasts seeking to push their truck's performance beyond factory limits. Whether you're tackling rugged trails or upgrading for a more aggressive stance, this kit provides the durability and flexibility needed for demanding applications.

Built with a focus on strength and precision, the Radius Arm System offers a significant lift height while maintaining excellent steering and handling characteristics. The included coil springs and rear block & u-bolt kit work together to provide a balanced ride height and load support, ensuring your vehicle remains stable under various driving conditions. The system's design also accommodates larger tires, giving your F350 a commanding presence and improved traction off-road.

Key Features

The Fabtech 6" Radius Arm System incorporates several innovative features that set it apart from standard suspension upgrades:

• Patented Radius Arms with full tubular construction reinforced by dimple die side plates, providing exceptional strength and durability for off-road use.
• Adjustable alignment cam at the axle, allowing for precise caster adjustment to optimize steering response and tire wear.
• Heavy-duty replacement coil springs in the front, engineered to support increased ride height and load capacity without sacrificing ride quality.
• Rear block and u-bolt kit designed to lift the rear suspension, maintaining proper driveline angles and vehicle stance.
• Trac Bar relocation bracket, Pitman Arm, and sway bar drops included to ensure proper geometry and handling after installation.
• Manufactured in the United States, ensuring high-quality craftsmanship and materials.
• Designed to work seamlessly with the factory chassis and drivetrain, providing a bolt-on installation experience.
• Supports larger tires for improved off-road traction and aggressive appearance.
• Optimized for off-road enthusiasts and truck owners who demand durability, performance, and reliability from their suspension system.

Construction & Design

The Fabtech Radius Arm System features robust, full tubular radius arms that are engineered for maximum strength and longevity. The side plates are dimple die-formed, adding reinforcement without adding unnecessary weight. The system's components are TIG-welded for precision and durability, ensuring each part withstands the rigors of off-road driving and heavy loads.

The coil springs are carefully selected to provide the ideal balance between lift and ride comfort, supporting the vehicle's weight while maintaining a smooth driving experience. The rear block and u-bolt kit are constructed from high-strength steel, designed to handle the stresses of off-road terrain and towing. The inclusion of a trac bar relocation bracket ensures proper axle positioning, preventing unwanted movement and promoting predictable handling.

Performance & Sound

This suspension system is designed to improve your Ford F350's off-road capability and overall handling. The increased ride height allows for larger tires, which translate into better traction and ground clearance. The adjustable caster cam ensures precise alignment, resulting in improved steering response and reduced tire wear. While this kit does not specifically enhance engine performance or exhaust sound, the upgraded suspension provides a more commanding stance and confident handling both on and off the pavement.

Installation & Fitment

The Fabtech 6" Radius Arm System is a bolt-on upgrade that is designed for straightforward installation with standard tools. The system integrates with the factory chassis and drivetrain, requiring no cutting or welding in most cases. Proper alignment is recommended after installation to ensure optimal handling and tire wear. Due to the complexity of suspension modifications, professional installation is highly recommended to achieve the best results and safety.

• Includes all necessary components for a complete suspension lift, including radius arms, coil springs, blocks, u-bolts, trac bar bracket, Pitman arm, and sway bar drops.
• No cutting, drilling, or extensive modifications are typically required.
• Installation time varies depending on experience but generally takes several hours.

What's Included

• Full set of patented tubular radius arms with reinforcement plates
• Front coil springs
• Rear block and u-bolt kit
• Trac bar relocation bracket
• Pitman arm
• Sway bar drop brackets
• All necessary hardware and mounting components
• Installation instructions

Ideal For

• Off-road enthusiasts seeking increased ground clearance and tire size support
• Ford F350 owners looking to improve suspension durability and handling under heavy loads
• Truck builders aiming for a commanding stance and aggressive appearance
• Drivers who want a reliable, high-quality lift kit manufactured in the United States

Emissions Note

This suspension lift system is designed for off-road use and may not be street-legal in all areas. Please check local regulations regarding lift kits and modifications before installation. This product is not CARB-compliant and is intended for off-road or show use only.