Fabtech K2131DL

2008–2016 Ford F350/F450 4WD 8-Lug

Part #: K2131DL

Overview

The Fabtech 6" Radius Arm System with Coils & DLSS Shocks is a comprehensive suspension upgrade designed specifically for Ford F350 and F450 4WD trucks from 2008 to 2016. This system provides a significant lift height, improved off-road capability, and enhanced handling, making it ideal for enthusiasts who want to tackle challenging terrains while maintaining a smooth on-road ride. Whether you're into off-road adventures, towing, or simply want a commanding stance, this kit offers the durability and performance you need.

Built with quality and precision, the Fabtech Radius Arm System features a full tubular structure reinforced with dimple die side plates for increased strength and longevity. The adjustable alignment cam at the axle allows for precise caster adjustments, ensuring optimal steering and tire wear. The included front replacement coil springs provide a 6-inch lift, supporting larger tires and improving ground clearance. Completing the system are high-performance Dirt Logic stainless steel shocks, which deliver superior damping and ride quality both on and off the pavement.

Key Features

The Fabtech K2131DL system is engineered with advanced materials and design techniques to maximize durability and performance. Key features include:

• Full tubular radius arms with dimple die side plates for enhanced strength and durability.
• Adjustable alignment cam at the axle for precise caster and alignment adjustments, promoting better handling and tire life.
• 6-inch replacement coil springs designed to provide reliable lift and support for larger tires and off-road obstacles.
• Complete front and rear suspension components, including a rear block and U-bolt kit for proper axle positioning.
• High-quality Dirt Logic stainless steel shocks (2.25-inch diameter) for improved damping, ride comfort, and off-road performance.
• Sway bar drops and a trac bar relocation bracket to restore factory geometry and enhance stability.
• Designed for easy bolt-on installation with minimal modifications required.
• Manufactured in the USA with strict quality control standards to ensure long-lasting performance.

Construction & Design

The Fabtech Radius Arm System is built with heavy-duty, corrosion-resistant materials to withstand the rigors of off-road driving and heavy-duty applications. The tubular radius arms are crafted from high-strength steel and feature dimple die side plates, which increase structural integrity without adding unnecessary weight. The stainless steel Dirt Logic shocks are TIG-welded and engineered for durability and consistent performance in demanding conditions.

The system's design maintains proper suspension geometry, ensuring that your vehicle handles predictably and safely at all times. The adjustable cam at the axle allows for fine-tuning caster angles, which is critical for steering response and tire wear. The coil springs are engineered to provide a balanced lift height, supporting larger tires and improving ground clearance for off-road adventures.

Performance & Sound

With this suspension upgrade, you'll experience improved off-road capability, better handling, and a commanding stance. The upgraded shocks and springs work together to absorb bumps and impacts, providing a smoother ride over rough terrain. The system also enhances your truck's ability to tow and carry heavy loads, thanks to the reinforced components and increased suspension travel. While primarily designed for off-road performance, the kit maintains a comfortable on-road ride, making it suitable for daily driving as well.

Installation & Fitment

The Fabtech K2131DL is a bolt-on system that is designed for straightforward installation with common tools. The components are engineered to fit directly onto your Ford F350/F450 4WD 8-lug chassis, with no cutting or extensive modifications required. Some alignment adjustments may be necessary after installation to ensure optimal handling and tire wear. It is recommended to have a professional alignment performed to maximize the benefits of this suspension system.

• Includes all necessary brackets, control arms, coil springs, shocks, and hardware for complete installation.
• No cutting, drilling, or welding required in most cases.
• Properly installed, this system provides a reliable lift and improved off-road capability.

What's Included

• Full set of tubular radius arms with dimple die side plates
• 6-inch replacement coil springs
• Front and rear Dirt Logic stainless steel shocks (2.25-inch diameter)
• Trac bar relocation bracket
• Sway bar drop brackets
• Rear block and U-bolt kit
• All necessary mounting hardware and instructions

Ideal For

This suspension system is perfect for off-road enthusiasts, heavy-duty truck owners, and anyone looking to increase ground clearance and improve handling on their Ford F350 or F450. Whether you're tackling rugged trails, hauling heavy loads, or seeking a more aggressive stance, this kit provides the performance and durability you need.

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.