FABTECH 4" Ultimate System w/ Ball Joint UCA & Dirt Logic Shocks - 2011-13 GM C/K2500HD & C/K3500HD 2WD/4WD View larger

FABTECH 4" Ultimate System w/ Ball Joint UCA & Dirt Logic Shocks - 2011-15 GM C/K2500HD & C/K3500HD 2WD/4WD

K1056DB

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FABTECH 4" Ultimate System w/ Ball Joint UCA & Dirt Logic Shocks - 2011-15 GM C/K2500HD & C/K3500HD 2WD/4WD

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$1,903.46

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Our 4” Ultimate System provides less lift than our 6” RTS™ system but still allows use of 33” or 35” tall tires with cutting for street and offroad use. We have developed this system utilizing replacement upper control arms constructed of 1.50” OD .120” thick wall DOM tubing that attaches to heavy duty Fabtech ductile iron steering knuckles. The factory torsion bars remain in the stock position and use new forged adjusting keys to provide the proper amount of lift.

 

There is no loss of ground clearance with this system as the stock lower control arms, torsion bars and front differential do not need to be relocated.

 

This 4” Ultimate System will level the stance of the vehicle compared to the factory nose down rake with no change to the rear suspension. For those customers that require a factory nose down appearance an optional 1” rear block kit is available.

 

 

Kit# K1056DB

  • Use 33/12.50R18 tire w/ 18x9 wheels w/ 5 3/4” BS w/ minor trimming
  • Use 33/12.50R20 tire w/ 20x9 wheels w/ 5 3/4” BS w/ minor trimming
  • Use 35/13.50R18 tire w/ 18x9 wheels w/ 5 3/4” BS w/ fenderwell cutting
  • Use 35/13.50R20 tire w/ 20x9 wheels w/ 5 3/4” BS w/ fenderwell cutting

 

Oty Part # Description
1 FTS21109 Component Box w/Dirt Logic Shocks

 

*FOOTNOTES

20. Will not fit standard cab models.
114. Will not fit 17” wheels.
124. Requires cutting of fenderwell sheetmetal for use with 35” tires

Dirt Logic 2.25 Non Resi


The new standard in large diameter mono tube shocks for lifted applications in the OE position as well as multiple shock applications, the 2.25 provides unparalled shock performance. Available with and without reservoir the Dirt Logic 2.25 offers a supple highway ride with outstanding offroad dampening.


  • - 2.25" OD Steel Body
  • - 2.0" OD Billet Aluminum Piston
  • - 7/8" Induction Hardened Chrome Piston Rod
  • - Polyurethane Mounting Ends
  • - Optional 2.25" OD Reservoir w/-8 Stainless Steel O-ring Hose
  • - Black Anodized Finish

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