Fabtech K2253

2017–2021 Ford F250/F350 4WD Gas

Part #: K2253

Overview

The Fabtech 4" Rad Arm System with Coils & Performance Shocks is a comprehensive suspension upgrade designed specifically for your Ford F250 or F350 4WD gas truck from 2017 to 2021. Engineered to enhance off-road capability, improve handling, and provide a smoother ride, this system is ideal for enthusiasts who demand durability and performance both on and off the pavement.

This kit features a patented radius arm design that offers superior strength and stability. The full tubular structure, reinforced with dimple die side plates, ensures maximum durability under demanding conditions. The adjustable alignment cam at the axle allows for precise caster adjustments, helping you achieve optimal alignment and tire wear. Complete with replacement coil springs, Piman arms, sway bar drops, and a rear block & U-bolt kit, this system provides a significant upgrade over stock suspension components, supporting increased load capacity and off-road performance.

Key Features

The Fabtech Rad Arm System is built with high-quality materials and innovative design features to deliver reliable performance and long-lasting durability. Key features include:

• Patented radius arm design with a full tubular structure for maximum strength and rigidity.
• Dimple die side plates reinforce the tubular arms, providing additional durability and resistance to bending or cracking.
• Adjustable alignment cam at the axle allows for precise caster adjustment, improving steering response and tire wear.
• Includes replacement coil springs engineered for improved ride height and load support, enhancing both on-road comfort and off-road capability.
• Performance shocks designed to handle rough terrain while maintaining excellent handling characteristics.
• Sway bar drops and rear block & u-bolt kit included to restore proper suspension geometry and ride quality after lift installation.
• Made in the United States, ensuring quality craftsmanship and reliable performance.
• Designed for enthusiasts seeking a durable, high-performance suspension upgrade that supports off-road adventures and heavy-duty use.

Construction & Design

The Fabtech Rad Arm System features a robust tubular design crafted from high-strength steel, ensuring longevity and resistance to the stresses of off-road driving. The dimple die side plates add reinforcement to the tubular arms, preventing deformation and cracking over time. The system's components are TIG-welded for precision and strength, providing a seamless, durable construction that withstands harsh conditions.

The inclusion of adjustable cams allows for fine-tuning of the caster angle, which is critical for maintaining proper steering geometry and tire wear. The coil springs are engineered to provide optimal ride height and load support, while the performance shocks are valved to absorb impacts and reduce body roll, delivering a balanced ride quality both on and off-road.

Performance & Sound

This suspension system is designed to improve your vehicle's off-road capability and handling response. While specific horsepower or torque gains are not claimed, the upgraded components help support increased load capacity and better wheel articulation. The improved suspension geometry results in more responsive steering and enhanced stability during spirited driving or challenging terrain. The shocks are tuned for a smooth, controlled ride, reducing body roll and absorbing rough impacts effectively.

Installation & Fitment

The Fabtech Rad Arm System is a bolt-on upgrade that uses existing factory mounting points, making installation straightforward for experienced DIY enthusiasts or professional installers. No cutting, drilling, or extensive modifications are required, and the system is designed to fit seamlessly with your truck's existing chassis and suspension components. Proper alignment is recommended after installation to ensure optimal handling and tire wear.

• Designed specifically for 2017–2021 Ford F250 and F350 4WD gas models.
• Includes all necessary hardware and components for a complete installation.
• Installation time varies depending on experience but typically requires a few hours.

What's Included

• Patented radius arms with reinforced tubular design
• Replacement coil springs
• Piman arms
• Sway bar drops
• Rear block & U-bolt kit
• Performance shocks
• All necessary hardware and mounting components

Ideal For

This suspension upgrade is perfect for off-road enthusiasts, heavy-duty users, and anyone looking to improve their Ford F250 or F350's ride height, stability, and load capacity. Whether you're tackling rugged trails, hauling heavy loads, or simply want a more commanding stance, this system provides the durability and performance you need.