Fabtech Radius Arm System

2017–2021 Ford F250/F350 4WD Gas

Part #: K2253DL

Overview

The Fabtech 4" Radius Arm System with Coils & DLSS Shocks is a comprehensive suspension upgrade designed specifically for 2017–2021 Ford F250 and F350 4WD gas models. Engineered to enhance off-road capability, improve ride quality, and provide superior durability, this system is ideal for enthusiasts who demand more from their heavy-duty trucks. Whether you're tackling rugged trails or seeking a more confident on-road experience, this kit delivers reliable performance and improved handling.

Built with precision and quality in mind, the Fabtech Radius Arm System replaces the factory components with a robust, full tubular structure featuring dimple die side plates for added strength. The inclusion of adjustable alignment cams allows for precise caster adjustments, ensuring optimal steering geometry and tire wear. Complete with upgraded coil springs, sway bar drops, a Piman arm, and a rear block & U-bolt kit, this system provides a balanced lift and improved suspension articulation, making it suitable for both daily driving and off-road adventures.

Key Features

The Fabtech Radius Arm System is designed with durability and performance in mind, incorporating several advanced features:

• Full tubular radius arms with dimple die side plates for enhanced strength and rigidity, ensuring long-lasting performance under demanding conditions.
• Adjustable alignment cams at the axle allow for precise caster adjustments, helping to maintain proper steering geometry and tire alignment after installation.
• Heavy-duty coil springs included in the kit provide a 4-inch lift, improving ground clearance and off-road capability while maintaining ride comfort.
• Sway bar drops help restore factory handling characteristics and reduce body roll, especially when the vehicle is lifted.
• The rear block and U-bolt kit offers additional lift and stability, supporting heavier loads and off-road terrain.
• Manufactured in the United States, ensuring high-quality craftsmanship and reliable performance.
• Designed specifically for 4WD gas models, ensuring a perfect fit and straightforward installation.

Construction & Design

The Fabtech Radius Arm System features a meticulously engineered design utilizing high-strength tubular steel for the radius arms, which are reinforced with dimple die side plates to withstand the stresses of off-road driving. The adjustable cams are crafted for precise alignment adjustments, allowing you to fine-tune caster angles for optimal handling. The coil springs are engineered to provide a smooth ride while supporting the increased lift height, and the sway bar drops are designed to restore factory handling dynamics. All components are manufactured in the United States, adhering to strict quality standards to ensure durability, fitment, and long-term performance.

Performance & Benefits

This suspension upgrade significantly improves your truck's off-road capability by increasing ground clearance and articulation, allowing you to navigate rough terrain with confidence. The adjustable caster cams help maintain proper alignment, reducing tire wear and improving steering response. The upgraded coil springs provide a comfortable ride and support heavier loads, making your truck more versatile for work or recreation. Additionally, the system enhances overall stability and handling, ensuring your vehicle remains predictable and controlled whether on or off the pavement.

Installation & Fitment

The Fabtech Radius Arm System is a bolt-on upgrade designed for straightforward installation with standard tools. While some mechanical expertise is recommended, the system does not require cutting, drilling, or extensive modifications. Proper alignment is advised after installation to ensure optimal handling and tire wear. The included components are engineered to fit precisely, providing a secure and reliable upgrade for your Ford F250/F350 4WD gas truck.

• Complete bolt-on installation with no cutting or drilling required
• Includes all necessary hardware and instructions for a hassle-free upgrade
• Designed specifically for 2017–2021 Ford F250/F350 4WD gas models

What's Included

• Full set of tubular radius arms with dimple die side plates
• Adjustable caster alignment cams
• Heavy-duty coil springs (4-inch lift)
• 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 enhance their Ford F250 or F350's capability and ride quality. Whether you're tackling challenging trails, hauling heavy loads, or simply want a more commanding stance, this kit provides the strength and performance you need.

Emissions Note

This product is designed to meet or exceed industry standards for durability and performance. Please verify local regulations regarding emissions compliance before installation. This kit is intended for off-road use and may not be street-legal in all areas.