FABTECH 8" 4 Link System w/Dirt Logic 4.0 Coilovers & Rear Performance Shocks - 2011-13 Ford F250 4WD (K2142B) View larger

FABTECH 8" 4 Link System w/Dirt Logic 4.0 Coilovers & Rear Performance Shocks - 2011-14 Ford F250 4WD (K2142B)


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8" 4 Link System w/Dirt Logic 4.0 Coilovers & Rear Performance Shocks - 2011-14 Ford F250 4WD w/ Factory Overload

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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.


Kit# K2142B

  • Use 355/65R18 tires w/ 18x9.5 wheels w/ 4 3/4” BS w/ minor trimming
  • Use 37/13.50R20 tires w/ 20x10 wheels w/ 4 1/2” BS w/ minor trimming


Oty Part # Description
1 FTS22140 Component Box 1
1 FTS22143 Component Box 2
1 FTS22080BK Component Box 3
2 FTS835011 Front Dirt Logic 4.0 Coilover
1 FTS22105 Rear Block & Add-a-leaf Kit
2 FTS7266 Rear Performance Shocks



27. Front drive shaft modification may be required to clear exhaust on gas motor.

Front Dirt Logic 4.0 Coilovers

As the largest vehicle specific take apart, monotube shock on earth, the Dirt Logic 4.0 continues to expand its applications to include a remote reservoir style for GM and Dodge. The Dirt Logic 4.0 will provide the ultimate in hardcore offroad dampening capacity with superior highway comfort. Nothing else comes close.

  • - 4.0" OD Steel Body
  • - 3 5/8" OD Billet Aluminum Piston
  • - 1.25" Induction Hardened Chrome Piston Rod
  • - Adjustable Coilover Construction
  • - 3/4" Spherical Ball Mounting Ends
  • - 4.0" OD Piggyback Reservoir or Remote Reservoir
  • - Black Anodized Finish

Performance Shocks

Fabtech Performance Shocks have been designed to work in conjunction with each of our suspension systems, resulting in superior ride control. Features include high velocity 9-stage valving for excellent dampening capabilities and a closed cell insert to reduce shock fade at high speeds.

  • - Twin Tube Hydraulic Construction
  • - 9/16" Hardened Chrome Piston Rod
  • - 1 3/8" OD Piston
  • - Closed Cell Foam insert
  • - High Flow 9 Stage Valving