Fabtech K2158DL Ford F450, F550 Radius Arm Dirt Logic Coilover lift kit

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2011-13 4WD Ford F450, F550 10-Lug Super Duty 6" Radius Arm/Dirt Logic 4.0 Coilover lift kit, Dirt Logic shocks

Product No: K2158DL FT

Availability: In stock


Quick Overview

The Fabtech patented Radius Arm lift kit for your Ford F450, F550 10-Lug Super Duty also includes a trac bar relocation bracket, pitman arm, billet sway bar end links with heim ends, quad layer limiting straps, carrier bearing shims, a rear block and u-bolt kit. The radius arms feature a full tubular structure strengthened by dimple die side plates, with an adjustable alignment cam at the axle to allow caster adjustment. Rear Dirt Logic 2.25 shocks are included.

Front lift comes from our Dirt Logic 4.0 Coilover Shock conversion that replaces the stock coil spring buckets with the Fabtech Coilover conversion towers with super stout gusseting. The upper coilover mounts are constructed with 1.75 diameter DOM tubing that replace the factory coil spring mounts and span across a wide section of the frame for proper impact load distribution. The lower mounts are 1/4" thick steel that attach to the axle housing. To complete this conversion, opt for the optional Dirt Logic Hydraulic Bump Stops sold separately.

F450: Use 285/75R18 tires w/ OEM dually wheels
F550: Use 285/75R19.5 tires w/ OEM dually wheels

This Fabtech lift kit is covered by their FIVE SIXTY Powertrain Warranty. See Details

View kit installation instructions
    • Make: Ford
    • Model: F450
    • Vehicle: 2011-13 F450, F550 10-Lug 6" Radius Arm/Dirt Logic 4.0 Coilover lift kit, Dirt Logic shocks
    • 2or4: 4WD


Fabtech lift kit fits the following models:
2011 Ford F450 10-Lug
2012 Ford F450 10-Lug
2013 Ford F450 10-Lug
2011 Ford F550 10-Lug
2012 Ford F550 10-Lug
2013 Ford F550 10-Lug

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