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Fabtech 5" Crawler System w/ Front Dirt Logic 2.5 Coilovers & Rear Dirt Logic Shocks - 2007-11 Jeep JK 4WD



5108.95 $5,108.95

For JK owners that require the ultimate in offroad performance Fabtech offers a 5" Crawler system that will allow use of 37" tall tires for aggressive offroad use. The front system features a conversion from the factory 4 link arms to our proven Radius Arm design. The adjustable Radius Arm links are constructed of 5/16" thick steel for maximum dent resistance with rotational urethane joints at each end for unrestricted articulation. These new Radius Arms mount to a 1/4" thick steel crossmember that bolts to the frame under the transmission. The front steering geometry is relocated via a dropped pitman arm. A Trac Bar relocation bracket keeps the arc of travel between the Trac Bar and Drag Link proper to reduce bump steer throughout the suspension travel. Lift is accomplished with replacement coil springs or a Coilover Conversion system with Dirt Logic 2.5 Coilovers for maximum performance both on and offroad. The rear system retains the factory 5 Link design but with extended length lower tubular arms that bolt to new side frame brackets. Installation of these frame brackets does not require the removal of the gas tank or welding. The upper links are replaced as well with a tubular style in the factory mounts. Both upper and lower links feature 5/16" thick wall links with adjustable rotational urethane ends. The rear Trac Bar is properly relocated to keep the rear axle tracking with the front axle for superior road handling at high speed. For increased ground clearance at the rear axle, we provide replacement shock mounts that allow trimming of the factory mounts. This allows an additional 1" of ground clearance over the factory mounts. We offer heavy duty replacement driveshafts to be used with this system for maximum driveline reliability.


Kit# K4041DB

  • Use 37/12.50R17 tires w/ 17x8.5 wheels w/ 5” BS w/ minor trimming


Oty Part # Description
1 FTS24083BK Component Box 1
1 FTS24084BK Component Box 2
1 FTS24087BK Coilover Hoop Kit
1 FTS240881BK Front Dirt Logic 2.5 Resi Coilovers
1 FTS24086BK Rear Coil Springs
2 FTS810571 Rear Dirt Logic 2.0 Non Resi


Order required Accessories

  • 1  FTS94057  Front Driveshaft 2 & 4 Door Models
  • 1  FTS94051  Rear Driveshaft 2 Door Model only
  • 1  FTS94052  Rear Driveshaft 4 Door Model Only

*Kit Price does not Include Drive Shafts

Front Dirt Logic 2.5 Resi Coilovers


Derived from our desert racing experience, the Dirt Logic 2.5 Coilover is an exceptional performance shock that has been developed for a variety of Coilover applications. The Dirt Logic 2.5 will provide incredible dampening capacity for aggressive offroad driving.


  • - 2.50" OD Steel Body
  • - 2.25" OD Billet Aluminum Piston
  • - 7/8" Induction Hardened Chrome Piston Rod
  • - Adjustable Coilover Construction
  • - 5/8" Spherical Ball or Urethane Mounting Ends
  • - 2.25" OD Reservoir w/-8 Stainless Steel O-ring Hose
  • - Black Anodized Finish

Rear Dirt Logic 2.0 Non Resi Shocks


Designed for applications where our 2.25 is physically to large to fit. Provides outstanding dampening capacity for both on and offroad.


  • - 2.0" OD Steel Body
  • - 1 5/8" OD Billet Aluminum Piston
  • - 7/8" Induction Hardened Chrome Piston Rod
  • - Polyurethane Mounting Ends
  • - Black Anodized Finish
More Information
Special Fitment Notes No special fitment notes.
SKU F37K4041DB
Free Shipping Yes
Installation Difficulty No
Installation Instructions Not Available