Fabtech K2434DL 6-Inch FTS-X Radius Arm Lift Kit with Dirt Logic Shocks — 2023–2025 F-250/F-350 4WD Diesel

Fabtech K2434DL combines separate front lift coils and adjustable FTS-X radius arms with front Dirt Logic 2.25 reservoir shocks, rear block hardware and rear Dirt Logic 2.25 non-reservoir shocks.

Application

• 2023–2025 Ford F-250 or F-350 Super Duty XL, XLT, Lariat, King Ranch or Platinum; diesel, 4WD and single rear wheel. Complete system installation starts with a stock vehicle; verify exact vehicle equipment before ordering.
• Does not fit gas engines, dually trucks or Ford onboard scale systems. 2026 applications are outside this listing.
• Vehicles with a two-piece rear driveshaft require the separately sold FTS419 carrier-bearing shim kit. Vehicles with a factory rear sway bar require the separately sold FTS22276 extended rear sway-bar links. Check these requirements before purchase.

Package contents

• One FTS22024BK front coil box containing TWO front lift coil springs. These are separate springs, not coilover shocks.
• One FTS22219 rear box: driver and passenger FTBK64 lift blocks, FOUR FT742U round 5/8-18 × 18 × 3.50-inch U-bolts and specified U-bolt hardware.
• One FTS22389 front component box with the specified steering, track-bar, sway-bar and bumpstop relocation components and installation hardware.
• One FTS22390 adjustable radius-arm box forming a driver and passenger pair, with rod ends, misalignments and hardware.
• TWO FTS800382 FRONT Dirt Logic 2.25 reservoir shocks and TWO FTS810052 REAR Dirt Logic 2.25 non-reservoir shocks: FOUR new dampers total. No front coilover conversion is included.

Installation and requirements

• Professional installation required. Read FT22389i, FT22390i, FT22219i and the instructions supplied with the selected shocks. Verify the complete kit and factory alignment before work.
• Installation requires removing front springs and shocks, fitting the new coils and shocks, replacing the radius arms and pitman arm, relocating the track bar and steering stabilizer, and fitting sway-bar and brake-line brackets.
• The front bumpstop procedure requires 1/2-inch holes in the factory cups and mounting holes, plus a 1-1/4-inch access hole in each frame rail for the supplied nut tabs. Follow the exact manual measurements and protect bare metal.
• Remove previously installed radius-arm drop brackets where applicable. Install the correct handed rear blocks and U-bolts; rear blocks replace the factory blocks. Nominal system lift does not mean the same amount of added rear height.
• Use the exact listed reservoir front shocks and non-reservoir rear shocks; do not substitute other shock numbers from generic instruction examples. Verify line and tire clearances, align to factory specifications, adjust headlights and recheck fasteners after 50 miles and periodically.

Tire and wheel guidance

• Published manufacturer guidance: 38/12.50R17 on 17×9 wheels with 4-3/4-inch backspacing, 38/12.50R18 on 18×9 with 4-3/4-inch backspacing, or 38/12.50R20 on 20×9 with 5-inch backspacing, with minor trimming. The listed 40-inch combinations require cutting.
• The front-system manual gives more conservative 37-inch examples with trimming. Verify actual clearance with the installer; tire sizes are guidance, not guaranteed clearance. Wheels and tires are sold separately.

Manufacturer part number: K2434DL. Manufacturer product details.

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