Fabtech K2218M

2017–2021 Ford F250/F350 4WD Diesel

Part #: K2218M

Overview

The Fabtech 6-inch Radius Arm System with Coils & Stealth Shocks is a comprehensive suspension upgrade designed specifically for Ford F250 and F350 trucks from 2017 to 2021. Built to enhance off-road capability, improve ride quality, and support larger tires, this system is ideal for enthusiasts seeking a rugged, reliable lift solution that maintains excellent handling and durability.

This kit features a patented radius arm design with a full tubular structure reinforced by dimple die side plates, providing increased strength and longevity under demanding off-road conditions. The adjustable alignment cam at the axle allows for precise caster adjustments, ensuring optimal steering response and tire wear. The front spring lift is achieved with high-quality 6-inch replacement coil springs, offering a balanced lift height that maintains factory-like ride comfort while providing additional ground clearance.

Key Features

Designed with performance and durability in mind, the Fabtech Radius Arm System offers several advanced features:

• Full tubular radius arms reinforced with dimple die side plates for superior strength and resistance to bending or fatigue.
• Adjustable alignment cam at the axle for precise caster and alignment adjustments, promoting better handling and tire longevity.
• High-quality 6-inch replacement coil springs engineered to provide a reliable lift while maintaining ride comfort and stability.
• Complete system includes a Trac Bar relocation bracket, Pitman arm, sway bar drops, and a rear block & U-bolt kit, ensuring comprehensive suspension enhancement.
• Front and rear Stealth shocks included, designed to absorb impacts efficiently and provide a smooth ride both on and off-road.
• Constructed with durable materials suitable for demanding off-road environments, ensuring long-lasting performance.
• Compatible with diesel models, providing a tailored fit for heavy-duty applications.

Construction & Design

The Fabtech 6-inch Radius Arm System is built with precision and quality materials to withstand the rigors of off-road driving. The tubular radius arms are crafted from heavy-duty steel and feature dimple die side plates for added strength. The system's components are designed for easy bolt-on installation, utilizing factory mounting points and hardware where possible, reducing installation time and complexity.

The adjustable cam at the axle allows for fine-tuning of caster angles, which is critical for maintaining proper steering geometry and tire wear. The coil springs are engineered to provide a lift of approximately 6 inches, balancing increased ground clearance with ride comfort. The included shocks are specifically tuned for this lift height, ensuring optimal damping and stability during spirited driving or challenging off-road conditions.

Performance & Sound

This suspension system significantly improves off-road capability by increasing ground clearance and wheel travel, allowing your truck to tackle rough terrain with confidence. The upgraded shocks provide better impact absorption, reducing body roll and enhancing overall stability. While primarily designed for off-road performance, the system also offers improved handling and ride quality on paved roads, making it suitable for daily driving and heavy-duty work.

Installation & Fitment

The Fabtech Radius Arm System is a bolt-on upgrade that requires no cutting or welding, making it accessible for most DIY enthusiasts with basic mechanical skills. The system uses factory mounting points and hardware, ensuring a secure fit and straightforward installation process. Some alignment adjustments may be necessary after installation to achieve optimal handling characteristics. No additional tuning or modifications are typically required.

• Complete bolt-on installation with detailed instructions included.
• Designed specifically for 2017–2021 Ford F250 and F350 4WD Diesel models.
• Supports larger tires and off-road use without compromising ride quality or handling.

What's Included

• Front radius arms with adjustable cam
• 6-inch replacement coil springs
• Trac Bar relocation bracket
• Pitman arm
• Sway bar drop brackets
• Rear block & U-bolt kit
• Front and rear Stealth shocks
• All necessary mounting hardware and instructions

Ideal For

• Off-road enthusiasts seeking increased ground clearance and wheel travel
• Heavy-duty truck owners needing a reliable lift system for towing or hauling
• Ford F250/F350 owners wanting to improve appearance and off-road capability
• Drivers looking for a durable, high-performance suspension upgrade

Emissions Note

This suspension lift system is designed for off-road use and is not intended for on-road emissions compliance. Please verify local regulations before installation if street legality is a concern.