Fabtech Radius Arm System

2008–2016 Ford F250 4WD / F350 4WD (Without Factory Overload) 8" Lift

Part #: K2123M

Overview

The Fabtech 8" Radius Arm System is a comprehensive suspension upgrade designed specifically for Ford F250 and F350 4WD trucks from 2008 to 2016. Engineered to deliver exceptional off-road capability and improved ride quality, this system provides a significant lift while maintaining excellent handling and stability. Whether you're tackling rugged trails or enhancing your truck's appearance, this kit offers a reliable solution for enthusiasts seeking durability and performance.

Designed for trucks that require a substantial lift without the factory overload, this system enhances ground clearance, enabling larger tires and improved off-road maneuverability. The kit is ideal for off-road enthusiasts, overlanders, and those looking to customize their truck for both work and play. With its robust construction and thoughtful design, you'll get a lift that supports your adventurous lifestyle while ensuring long-lasting performance.

Key Features

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

• Full tubular radius arms with dimple die side plates provide increased strength and durability, ensuring reliable performance under demanding conditions.
• An adjustable alignment cam at the axle allows for precise caster adjustments, helping to optimize steering geometry and tire wear.
• Front spring lift includes 8-inch replacement coil springs, offering a significant lift height while maintaining ride quality.
• A comprehensive set of components, including a trac bar relocation bracket, Pitman arm, sway bar drops, rear add-a-leafs, and a block & U-bolt kit, ensures a complete suspension overhaul.
• All components are manufactured in the United States, reflecting high-quality craftsmanship and adherence to strict standards.
• The system is designed to work with non-overload configurations, providing a tailored fit for specific truck setups.
• Heavy-duty materials and construction techniques ensure longevity and resistance to off-road elements.
• Includes all necessary hardware and instructions for straightforward installation, making it suitable for experienced DIY enthusiasts and professional installers alike.

Construction & Design

The Fabtech Radius Arm System features a meticulously engineered design that emphasizes strength, durability, and precise fitment. The radius arms are constructed from full tubular steel, offering superior resistance to bending and torsion. Dimple die side plates reinforce critical stress points, further enhancing structural integrity. The adjustable cam at the axle allows for fine-tuning of caster angles, which is essential for maintaining proper steering response and tire wear over time.

The front coil springs are engineered to provide an 8-inch lift, crafted from high-quality steel to withstand the rigors of off-road driving while maintaining a comfortable ride on paved roads. The inclusion of a trac bar relocation bracket ensures proper axle positioning, preventing unwanted movement and promoting stability. The sway bar drops and rear add-a-leafs are designed to restore factory handling characteristics and improve load-carrying capacity, respectively.

Performance & Sound

This suspension system is built to enhance your truck's off-road performance by increasing ground clearance and wheel travel. The robust construction ensures that your vehicle can handle rough terrain, steep inclines, and uneven surfaces with confidence. While specific horsepower or torque gains are not claimed, the system supports larger tires and improved suspension geometry, which collectively contribute to better overall vehicle control and responsiveness.

Installation & Fitment

The Fabtech Radius Arm System is a bolt-on upgrade that requires no cutting or welding, making it accessible for experienced DIY installers and professional shops. The kit is designed to fit directly onto your Ford F250 or F350 4WD trucks from 2008 to 2016, provided the vehicle does not have the factory overload. Proper alignment and inspection are recommended after installation to ensure optimal performance and tire wear. No special tuning is necessary, but professional alignment is advised to achieve the best handling characteristics.

• Complete bolt-on system with all necessary hardware and detailed instructions
• No cutting, drilling, or welding required for installation
• Designed specifically for trucks without factory overloads

What's Included

• Full set of tubular radius arms with dimple die side plates
• 8-inch replacement coil springs
• Trac bar relocation bracket
• Pitman arm
• Sway bar drop brackets
• Rear add-a-leafs
• Block and U-bolt kit
• All necessary mounting hardware and instructions

Ideal For

• Off-road enthusiasts seeking increased ground clearance and wheel travel
• Truck owners looking to upgrade their suspension for improved durability and performance
• Overlanders and adventure seekers who require a reliable lift system for rugged terrain
• Custom truck builders aiming for a high-quality, American-made suspension solution

Emissions Note

This suspension system is designed for off-road use and does not affect emissions compliance. Please verify local regulations before installation if you plan to register your vehicle for street use.