Fabtech K2335M 6-Inch Radius Arm Lift - 2019 F450 XL 4x4 6.7L Diesel - Stealth Shocks

Fabtech K2335M is a 6-inch radius-arm suspension system for a 2019 Ford F450 Super Duty XL 4x4 with the 6.7L V8 diesel engine. Does not fit the Ford Fat Boy steering option. Have a Ford dealer verify the steering box by VIN before ordering. Some vehicles may not sit level after installation.

Package contents

One system includes one FTS22251 coil box with two FT30733 front coil springs, one FTS22311 component box and one FTS22274 rear box. Includes two FTS6188 front and two FTS6063 rear Stealth monotube shocks: four shock assemblies in total.

The FTS22311 box includes one FT31117 driver and one FT31118 passenger radius arm, the FT30956 track-bar relocation bracket, the 2019-application FT30903 pitman arm, front bump-stop extensions, sway-bar and axle brackets, brake-line and steering-stabilizer brackets, alignment cams, bushings, sleeves and listed hardware.

The FTS22274 rear box includes two FTBK65 rear lift blocks, four FT759U U-bolts, two FT30784 rear sway-bar end links, two FT30750 rear bump-stop extensions, one FTS419 driveshaft shim kit and listed hardware. The factory rear blocks are removed and replaced.

Additional requirements and installation

Front driveshaft modification or a suitable aftermarket front driveshaft is required and must be arranged separately. The included FTS419 shim kit does not replace this front driveshaft requirement.

Installation requires drilling the front frame and bump-stop mounting holes and the rear bump-stop mounting plates. The drag link is rotated and installed from the bottom of the replacement pitman arm. Brake-line and ABS-wire routing must follow the manufacturer instructions.

For the Stealth front shocks, vehicle variations may require sanding the top of the lower shock mount to clear the shock body, as described in the instructions.

Professional installation, alignment, headlight adjustment and full steering, brake-hose, ABS-wire, suspension and tire-clearance checks are required. Wheel and tire clearance must be verified on the vehicle; trimming may be required. Recheck fasteners after 50 miles and periodically thereafter. Confirm the exact vehicle configuration before ordering and follow the complete manufacturer instructions.

The installed-vehicle photo is illustrative. Its model, cab, trim, wheels and tires do not establish fitment for another vehicle.

Manufacturer installation instructions

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