Fabtech Radius Arm System with DLSS 4.0 Coilover & Rear DLSS

2008–2010 Ford F350 4WD

Part #: K20471DL

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 2008 to 2010. This system is engineered to deliver exceptional off-road performance, improved ride quality, and increased ground clearance, making it an ideal choice for enthusiasts who demand durability and capability from their heavy-duty pickup.

Whether you're tackling rugged trails, hauling heavy loads, or seeking a commanding stance, this kit provides the strength and adjustability needed to enhance your vehicle's performance. The system combines premium components with innovative design features to ensure a reliable, long-lasting upgrade that maintains factory-like handling and comfort on the street while excelling off-road.

Key Features

The Fabtech Radius Arm System is built with high-quality materials and advanced engineering to provide superior strength and durability. Key features include:

• Full tubular radius arms reinforced with dimple die side plates for increased strength and rigidity, ensuring reliable performance under demanding conditions.
• Adjustable alignment cam at the axle allows for precise caster adjustments, helping to optimize steering geometry and tire wear.
• Front lift is achieved with the Dirt Logic 4.0 Stainless Steel Coilover Shock conversion, offering adjustable ride height and improved damping characteristics for off-road stability and control.
• Includes a Trac Bar relocation bracket to maintain proper axle positioning and reduce lateral movement during articulation.
• Replacement front Pitman Arm and sway bar drops are included to restore factory handling and steering response after lift installation.
• Complete rear suspension upgrade with new leaf springs and a block & U-bolt kit, providing additional lift and load-carrying capacity.
• Rear 2.25" Dirt Logic Stainless Steel shocks designed to handle rough terrain while maintaining a smooth ride quality.
• All components are designed for easy bolt-on installation, with no need for cutting or welding, ensuring a straightforward upgrade process.

Construction & Design

The radius arms are constructed from heavy-duty tubular steel, offering exceptional strength and resistance to bending or fatigue. The dimple die side plates add extra reinforcement, ensuring the arms can withstand the rigors of off-road driving and heavy loads. The Dirt Logic 4.0 Coilover shocks feature stainless steel construction for corrosion resistance and long-lasting performance, with adjustable damping to fine-tune ride quality.

The system's design maintains proper suspension geometry, which is critical for handling, steering, and tire wear. The inclusion of a Trac Bar relocation bracket ensures the axle remains centered during articulation, preventing unwanted side-to-side movement. The rear leaf springs and block & U-bolt kit are engineered to provide reliable lift and load support, complementing the front suspension upgrade.

Performance & Sound

This suspension system significantly improves off-road capability by increasing ground clearance and wheel travel, allowing your Ford F350 to conquer challenging terrain with confidence. The adjustable coilovers enable you to customize ride height and damping for optimal performance, whether you're on the trail or on the highway. The upgraded shocks provide better control, reduced body roll, and enhanced stability during spirited driving or heavy-duty tasks.

Installation & Fitment

The Fabtech Radius Arm System is designed as a bolt-on upgrade, making installation straightforward for experienced DIY enthusiasts or professional installers. All necessary brackets, hardware, and components are included, and the system requires no cutting, welding, or extensive modifications. Proper alignment is recommended after installation to ensure optimal handling and tire wear.

• Easy bolt-on installation with standard tools
• No cutting or welding required
• Includes all necessary hardware and brackets
• Alignment adjustments recommended for best performance

What's Included

• Full set of tubular radius arms with dimple die side plates
• Adjustable caster alignment cam
• Front Dirt Logic 4.0 Stainless Steel Coilover shocks
• Trac Bar relocation bracket
• Replacement Pitman Arm
• Sway Bar drop brackets
• Rear leaf springs
• Block & U-bolt kit
• Rear Dirt Logic 2.25" Stainless Steel shocks
• All necessary mounting hardware and instructions

Ideal For

This suspension upgrade is perfect for off-road enthusiasts, heavy-duty truck owners, and those looking to improve their Ford F350's ground clearance, stability, and load-carrying capacity. Whether you're tackling tough trails, hauling heavy loads, or simply want a commanding stance, this system provides the durability and performance you need.

Emissions Note

This product is designed for off-road use and may not be emissions compliant in all areas. Please check local regulations before installation. Proper installation and alignment are recommended to ensure optimal performance and safety.