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SKU: FTS22390 / UPC: 674866135710
Fabtech Adjustable Radius Arm Box Kit for 2023+ Ford F-250 and F-350 Super Duty 4WD Diesel – 2.5", 4", and 6" Lift Compatibility
The Fabtech Radius Arm Box Kit, designed specifically for diesel-powered F-250 and F-350 4WD models. This kit delivers enhanced front suspension performance by replacing stock radius arms with adjustable components that handle lifted setups up to 6 inches. Drivers report smoother handling on highways and greater stability over rough trails, making it a practical pick for those who demand more from their truck without sacrificing everyday drivability. Built to last through heavy use, this assembly outperforms standard options by reducing bind and allowing precise caster adjustments for better alignment and tire wear.
Precise Vehicle Fitment
- Years: 2023-2025
- Make: Ford
- Models: F-250 Super Duty 4WD Diesel, F-350 Super Duty 4WD Diesel (single rear wheel, non-dually configurations only)
- Exclusions: Does not fit gas engine models or trucks equipped with Ford's onboard scale system
- Lift Compatibility: Works with 2.5", 4", and 6" suspension lifts, including Fabtech's FTS-X systems
This kit ensures a direct bolt-on installation on compatible Super Duty trucks, maintaining factory ride quality while unlocking off-road potential for up to 40" tires on 6" lifts.
What's Included in Your Purchase
The FTS22390 kit arrives as a complete component box with everything needed for a straightforward upgrade:
- Pair of Adjustable Radius Arms (Primary Components): Offset design positions arms inboard for full steering lock with 13.50" wide tires on 5" backspace wheels.
- HD Uniballs: Pre-installed at the original equipment frame mounting points for reliable pivot action.
- FK Rod-End Mounts: Integrated for the adjustable lower link, enabling easy caster tuning to eliminate suspension bind.
- Hardware Kit: All necessary bolts, bushings, and fittings for secure installation (no additional parts required beyond basic tools).
Part Number: FTS22390
UPC: 674866135710
Key Specifications
- Construction: Heavy-duty 1.75" outer diameter x 0.120" wall DOM steel tubing, fully welded for corrosion resistance and structural integrity.
- Adjustability: Lower link allows for customizable caster settings, improving alignment on lifted vehicles.
- Tire Fitment: Supports up to 40" tires with 6" lift kits; compatible with 35"-37" tires on 4" setups.
- Product Weight: 157.41 lbs
- Shipping Box Dimensions: 43.5" L x 12.5" W x 8" H
Fabtech engineers this kit in the USA with over 30 years of real-world testing in consumer, commercial, and military fleets. It combines daily comfort with trail-ready capability, giving your Super Duty the edge in demanding conditions where others fall short.
Ready to transform your Ford's suspension? Order the Fabtech FTS22390 today and experience the difference in control and durability.
Fabtech
Fabtech is a California-based suspension lift kit and off-road suspension manufacturer that has been engineering lift systems, control arms, sway bar disconnects, steering components, and performance shocks specifically for popular light trucks and SUVs since 1984. The brand's commitment to proper engineering, including in-field testing on real vehicles and multiple fit checks before releasing any kit, produces suspension systems that integrate cleanly with factory TPMS sensors, electronic stability control, and factory ABS systems that many cheaper lift kit manufacturers ignore. Fabtech lift kits for Ford F-150, F-250, F-350 Super Duty, Chevrolet Silverado, GMC Sierra, Toyota Tacoma, Ford Bronco, and Jeep Wrangler are among the most popular because the brand covers all major market truck platforms with model-year specific kits rather than generic universal designs. Serious off-road enthusiasts and truck owners who plan to run 33 to 40-inch tires with confidence that the suspension ...
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