Fabtech Radius Arm System with DLSS 4.0 Coilover & Rear DLSS

2011–2016 Ford F350 4WD

Part #: K2153DL

Overview

The Fabtech 10" Radius Arm System with DLSS 4.0 Coilover and Rear DLSS is a comprehensive suspension upgrade designed specifically for Ford F350 4WD trucks from 2011 to 2016. This system is engineered to provide a significant lift, improved off-road capability, and enhanced handling for enthusiasts who demand durability and performance both on and off the pavement. Whether you're tackling rugged trails or upgrading your truck for better load support, this kit offers a reliable solution that combines advanced technology with robust construction.

Designed for off-road enthusiasts, heavy-duty users, and those seeking a commanding stance, this system transforms your F350's suspension to handle challenging terrains while maintaining a smooth ride quality. The inclusion of premium components ensures that your vehicle will perform confidently under demanding conditions, supporting increased ground clearance and wheel travel without sacrificing stability or safety.

Key Features

The Fabtech Radius Arm System is built with high-quality materials and innovative design features to maximize performance and longevity. Key features include:

• Full tubular radius arms reinforced with dimple die side plates, providing increased strength and durability for demanding off-road use.
• Adjustable alignment cam at the axle, allowing precise caster adjustment to optimize steering geometry and tire wear.
• Front lift achieved through the Dirt Logic 4.0 Stainless Steel Coilover Shock conversion, offering superior damping and ride quality over stock shocks.
• Rear suspension upgrades include heavy-duty 2.25-inch Dirt Logic Stainless Steel shocks, enhancing stability and control during off-road excursions.
• Complete system includes a Trac Bar relocation bracket, Pitman arm, sway bar drops, replacement rear leaf springs, and a block & U-bolt kit for a comprehensive lift solution.
• All components are designed for easy bolt-on installation, minimizing downtime and ensuring a secure fitment.
• Heavy-duty construction and corrosion-resistant materials ensure long-lasting performance in harsh environments.
• Optimized for a 10-inch lift, providing increased ground clearance and a commanding stance for your F350.

Construction & Design

The Fabtech Radius Arm System features a meticulously engineered design that emphasizes strength, durability, and precise fitment. The tubular radius arms are crafted from high-strength steel and reinforced with dimple die side plates, which significantly enhance their load-bearing capacity and resistance to bending or fatigue. The adjustable cam at the axle allows for fine-tuning of caster angles, ensuring proper steering response and tire wear over time.

The front coilover shocks utilize stainless steel construction, offering excellent corrosion resistance and consistent damping performance. The coilovers are engineered with a monotube design, providing improved heat dissipation and ride stability during extended off-road use. The rear shocks are similarly constructed from stainless steel, designed to withstand the rigors of off-road terrain while maintaining a smooth ride.

The inclusion of a Trac Bar relocation bracket and sway bar drops ensures proper axle alignment and handling characteristics after the lift. The replacement rear leaf springs are heavy-duty and matched to the system's lift height, providing improved load support and ride quality. Overall, the system's components are designed with precision CAD development and TIG welding techniques, resulting in a robust, reliable suspension upgrade.

Performance & Sound

This suspension system is engineered to deliver improved off-road capability, increased ground clearance, and enhanced stability. The upgraded coilover shocks provide superior damping control, allowing your truck to handle rough terrain with confidence. The system also improves overall ride quality by reducing body roll and absorbing impacts more effectively than stock suspension components. While specific horsepower or torque gains are not claimed, the system supports increased payload capacity and towing performance by strengthening the suspension structure.

Drivers will notice a more commanding stance and improved handling response, especially during spirited off-road driving or heavy-duty hauling. The upgraded shocks and reinforced arms contribute to a more controlled and comfortable ride, even in challenging conditions.

Installation & Fitment

The Fabtech Radius Arm System is designed as a bolt-on upgrade, making installation straightforward for experienced DIY enthusiasts or professional installers. The system utilizes existing factory mounting points and requires no cutting or drilling in most cases. Proper alignment and torque specifications should be followed to ensure optimal performance and safety. Some minor adjustments may be necessary to achieve perfect alignment, but overall, the installation process is streamlined and user-friendly.

• Includes all necessary hardware and components for a complete installation.
• No cutting, drilling, or tuning required in most applications.
• Designed specifically for 2011–2016 Ford F350 4WD trucks.

What's Included

• Full set of tubular radius arms with dimple die reinforcement
• Front Dirt Logic 4.0 Stainless Steel Coilover Shocks
• Rear Dirt Logic 2.25 Stainless Steel Shocks
• Trac Bar relocation bracket
• Pitman arm
• Sway bar drop brackets
• Replacement rear leaf springs
• Block & U-bolt kit
• All necessary mounting hardware and instructions

Ideal For

This suspension upgrade is ideal for off-road enthusiasts, heavy-duty users, and anyone looking to increase their Ford F350's ground clearance and load-carrying capacity. Perfect for trail riding, towing, and demanding work applications, this system provides the strength and performance needed for challenging 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.