Fabtech 4in Radius Arm System w/ Front DIir Logic 2.25 Resi Shocks & Rear Dirt

SKU: 1KQM4 | MPN:  K2289DL
In stock
Sale price$4,557.51 USD

Fabtechs Radius Arm system for the Ford Super Duty is built to handle the on and offroad demands of the truck enthusiast. This system is a complete upgrade to the factory suspension and will provide additional strength for use with oversized tires.

The heart of this quality system is Fabtechs tubular Radius Arms. The design of these arms comes from Fabtech race components built with a tubular structure reinforced by a dimple die side plate and heavy gusseting for rugged offroad use. They are an outstanding upgrade to the stock stamped arms.

This Radius Arm design has been proven in over 10 years of service in military applications. High quality components with properly designed suspension geometry is what sets this system apart from all other Radius Arm suspensions. 

Included with this system is Dirt Logic 2.25 Stainless Steel reservoir shocks in the front and non reservoir shocks in the rear. These Dirt Logic shocks have been ride tuned to the vehicle with the Fabtech Coil Springs and oversized tires for an excellent ride quality both on and offroad.

Each Fabtech component has been designed with specific features and benefits that create this quality suspension system. For a greater understanding of each these components, please see below.

Fabtech Replacement Radius Arms

Fabtech Front Coil Springs

Trac Bar Relocation Bracket

Sway Bar Drop Brackets

Pitman Arm

Rear Block & U-bolt Kit

FRONT DIRT LOGIC 2.25 RESI SHOCK

Dirt Logic 2.25s are designed to replace factory shocks with a larger, more robust configuration. The 2.25 size is what separates it from other replacement take apart shocks for a superior ride, both on and off road. Shocks are pretuned for each Fabtech suspension, accounting for larger tires, providing the finest all around damping.

  • 2.253 OD Stainless Steel Body
  • 2.03 OD Billet Aluminum Piston
  • 7/83 NitroSteel® BlackPiston Rod
  • Polyurethane Mounting Ends
  • 2.253 OD Aluminum Reservoir w/-6 Stainless Steel O-ring Hose


Vehicle Fitments:

Year Make Model Submodel
2018 - 2020 Ford F-250 Super Duty Limited
2017 - 2020 Ford F-250 Super Duty XL, XLT, Platinum, Lariat, King Ranch
2018 - 2020 Ford F-350 Super Duty Limited
2017 - 2020 Ford F-350 Super Duty Platinum, Lariat, King Ranch, XL Plus, XLT, XL

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