Fabtech 6in 4Link System with Coils & Stealth

2017–2021 Ford F250/F350 4WD Gas

Part #: K2257M

Overview

Upgrade your Ford Super Duty with the Fabtech 6-inch 4Link System featuring coils and stealth components, designed specifically for 4WD gas models from 2017 to 2021. This comprehensive suspension system delivers unmatched articulation, increased wheel travel, and enhanced off-road capability, making it ideal for enthusiasts who demand superior performance both on and off the pavement.

Built with heavy-duty materials and race-inspired components, this bolt-on system transforms your truck's handling and stability. Whether you're tackling rugged trails, towing heavy loads, or seeking a more aggressive stance, the Fabtech 4Link System provides the durability and performance you need to push your vehicle to the next level.

Key Features

The Fabtech 4Link System is engineered for strength, flexibility, and ease of installation, offering a significant upgrade over stock suspension components. Key features include:

• Heavy-wall 2-inch diameter links constructed from durable materials to withstand demanding off-road conditions.
• Race-style 1-inch Uniballs at each joint, providing superior strength, reduced flex, and precise steering response.
• Thick 1/4-inch steel brackets that securely attach the links to the vehicle's frame without the need for cutting or welding, simplifying installation.
• Designed to work seamlessly with replacement coil springs, allowing for adjustable ride height and improved load handling.
• Sway bar drop brackets, trac bar relocation bracket, and a new Pitman arm included to optimize suspension geometry and steering response.
• Rear block and U-bolt kit to accommodate the increased ride height and maintain proper axle positioning.

Construction & Design

The Fabtech 4Link System features heavy-duty steel components with precision engineering to ensure durability and longevity. The 2-inch diameter links are made from high-strength steel tubing, while the race-style Uniballs are designed for maximum load capacity and minimal wear. The steel brackets are laser-cut and CNC-formed for a perfect fit, ensuring a secure and stable connection to your vehicle's frame.

The system's design emphasizes ease of installation, with all components engineered to bolt directly onto existing mounting points. The use of thick steel brackets and high-quality Uniballs ensures that your suspension remains reliable under demanding conditions, providing consistent performance over time. The inclusion of sway bar drops and trac bar brackets helps maintain proper suspension geometry, reducing body roll and improving handling during off-road adventures or spirited driving.

Performance & Sound

With the Fabtech 4Link System installed, you'll notice a significant improvement in your truck's articulation and wheel travel, allowing for better traction and stability on uneven terrain. The race-style Uniballs provide a more responsive steering feel and help support increased suspension movement. The system also enhances ride quality by maintaining proper alignment and reducing stress on other suspension components.

While primarily focused on performance and durability, this suspension upgrade also contributes to a more commanding stance and aggressive appearance, adding to your truck's visual appeal. The system is designed to deliver reliable, long-lasting performance for off-road enthusiasts and daily drivers alike.

Installation & Fitment

The Fabtech 6-inch 4Link System is a bolt-on upgrade that requires no cutting or welding, making it accessible for experienced DIY enthusiasts and professional installers. The components are designed to fit directly onto your Ford F250/F350 4WD gas models from 2017 to 2021, with all necessary brackets, hardware, and instructions included. Some alignment adjustments may be necessary after installation to ensure optimal handling and suspension geometry.

What's Included

• Heavy-duty 2-inch diameter steel links with race-style Uniballs
• Steel brackets for frame mounting
• Sway bar drop brackets
• Trac bar relocation bracket
• Pitman arm
• Rear block and U-bolt kit
• All necessary mounting hardware and instructions

Ideal For

This suspension system is perfect for off-road enthusiasts, towing professionals, and anyone looking to improve their truck's articulation, stability, and overall performance. Whether you're upgrading for weekend adventures or daily driving with enhanced capability, the Fabtech 4Link System provides the strength and flexibility your Super Duty needs.