Fabtech FTS22321 Radius Arm Lift Kit for 05-22 Ford Super Duty 4WD

Vehicle Fitment

• 2005-2022 Ford F-250 Super Duty (4WD, Front Radius Arm Lift System)
• 2005-2022 Ford F-350 Super Duty (4WD, Front Radius Arm Lift System)
• 2008-2022 Ford F-450 Super Duty (4WD, Front Radius Arm Lift System)
• 2008-2022 Ford F-550 Super Duty (4WD, Front Radius Arm Lift System)

Features

• Heavy-duty radius arm lift system engineered for lifted Super Duty trucks
• Full tubular construction with 1.75" OD x .120" wall DOM tubing for strength
• Adjustable alignment cam at axle for caster tuning after lift installation
• Additional built-in caster improves highway tracking on lifted trucks
• Offset arm design allows full steering lock with wider tires (up to 13.50" wide)
• Open design enables complete powdercoat coverage for corrosion resistance
• Direct replacement for factory front radius arms on lifted suspensions
• Designed to work with 4", 6", and 8" suspension lifts without modification

Specifications

• Part Number: FTS22321
• Type: Radius Arm Lift System
• Fitment Years: 2005-2022
• Compatible Makes: Ford
• Compatible Models: F-250 Super Duty, F-350 Super Duty, F-450 Super Duty, F-550 Super Duty
• Drivetrain: 4WD
• Lifts Supported: 4", 6", and 8" suspension lift systems
• Material: DOM steel tubular construction with adjustable alignment cam

Included Components

• 2x Front Radius Arms (Left/Right)
• Alignment cams and hardware for installation
• Additional mounting brackets as required

Product Description

The Fabtech FTS22321 Radius Arm Lift Kit is a purpose-built front suspension upgrade for lifted Ford Super Duty trucks, including F-250, F-350, F-450, and F-550 models with 4WD from 2005 through 2022. These heavy-duty radius arms replace the factory arms and are engineered to provide strength, improved caster, and better highway tracking on lifted vehicles. The full tubular design with robust DOM steel tubing and adjustable alignment cams allows precise suspension tuning after lift installation.

Designed to work with 4", 6", and 8" suspension lifts, FTS22321 helps maintain steering performance and tire clearance even with oversized wheels and aggressive off-road use. The offset arm design allows full steering lock with wider tires while the open construction enables complete powdercoat coverage for superior corrosion resistance over boxed-style arms. This radius arm lift system is ideal for Super Duty owners seeking strength, alignment control, and enhanced suspension geometry after installing a significant lift.