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Fabtech 6'' Radius Arm System w/Dirt Logic 4.0'' Coilovers w/Performance Rear Shocks for 2011 Ford F-450/F-550 Super Duty 10 Lug 4wd


  • Provides 6'' of Lift
  • Radius Arm Suspension System
  • Heavy Duty Construction
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Pricing: $4,902.49


Obtain maximum front suspension damping for Super Duty's with our Dirt Logic 4.0'' Coilover Conversion system. The upper coilover mounts are constructed with 1.75'' diameter DOM tubing that replaces 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, providing solid mounting points for the Dirt Logic 4.0'' Coilover piggyback reservoir shocks. Also included in this system are billet sway bar end links with heim ends and quad layer limiting straps.

Tire Size:

  • F-450: Use 285/75R18 tires w/OEM dually wheels
  • F-550: Use 285/75R19.5 tires w/OEM dually wheels

Application List

2011 Ford F-450 SD 4wd, 10 Lug

2011 Ford F-550 SD 4wd, 10 Lug


Lift Type: Radius Arm Kit

Lift Inches: 6''

Max Tire Size: 285/75R18


  • K2158B
  • K2158B
  • Fabtech
  • New


Shipping Information

  • Item Requires Shipping
  • 437.4 lbs.
  • W3.0000” x H5.0000” x L20.0000”
  • This item will require a special quote for shipping charges.

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