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  1. J

    Is this a factory Rubicon transfer case?

    Hey there, my question pertains to identifying if my 2012 Rubicon has a 4:1 Rocktrac. My part number is correct for a RockTrac, 52123503AA and the build sheet for the vin says 4:1 rocktrac, but the ratio on the stamp is 2:72. I’m hoping that it’s that ratio on the tag is just incorrect. I...
  2. J

    Are Rock Krawler spring shims compatible with Rubicon Express springs?

    I just purchased a 2012 JK Rubicon 2DR. The previous owner installed a Rubicon Express basic lift with 2.5 or 3 inch springs but left the control arms stock. I want to upgrade the control arms with Rock Krawler X-factor Mid arms. Does any one know if the Rock Krawler spring shims, that come...