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Fabtech Part K4040 - 5” Crawler Suspension System
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5” Crawler Suspension System

By Fabtech

Part Number: FABK4040
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Overview

For JK owners that require the ultimate in off-road performance Fabtech offers a 5” Crawler system that will allow use of 37” tall tires for aggressive off-road 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 cross member that bolts to the frame under the transmission. The front steering geometry is relocated via a dropped pitman arm. A Track Bar relocation bracket keeps the arc of travel between the Track Bar and Drag Link proper to reduce bump steer throughout the suspension travel. Lift is accomplished with replacement coil springs. 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 Track 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.

Installation Instructions

Download Instructions Installation instructions are in PDF format.
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Technical Details

  • Fits 2007 to 2013 JK Wrangler, Rubicon and Unlimited
  • 2 and 4-door models
  • Adjustable Radius Arm links are constructed of 5/16” thick steel
  • 1/4” thick steel cross member
  • Replacement shock mounts provide 1” extra ground clearance
  • Fabtech Performance shocks
  • Max Tire Size: 37x12.50

Product Specs

Lift Height RangeSuspension TypeShocks IncludedRear Lift Method
3 to 4.99 InchesLong ArmYesCoil Springs

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