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  • JK Axle to TJ conversion...anyone succeeded?

    Has anyone SUCCESSFULY converted a JK axle to work on a TJ? I know the shock mounts and spring perches are different. And I know the bolt pattern on the axles are different. What I don't know is how the whole things works at the drive shaft end of things.

  • #2
    Why would you want to? From what I am reading the axles went to crap when they changed everything. I am sure with enough fab work you could make them fit tho.

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    • #3
      It was already in one of the 4x4 magazines (JP??)...and someone on JeepsUnlimited (also sponsered by 4WD) did it.

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      • #4
        They are quite a bit wider.


        And I agree, why? Your not gaining much if anything.

        And all the driveshafts would swap, just gotta find the right spicer flange adapter.

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        • #5
          Originally posted by oros35 View Post
          They are quite a bit wider.


          And I agree, why? Your not gaining much if anything.

          And all the driveshafts would swap, just gotta find the right spicer flange adapter.
          Actually, I think you are gaining quite a bit...D44's, lockers, disc brakes....if I still had a 30/35 combo, the JK swap is probably the most cost effective way to get a nearly bolt-on combo of decent 44's.

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          • #6
            Originally posted by Mozman68 View Post
            Actually, I think you are gaining quite a bit...D44's, lockers, disc brakes....if I still had a 30/35 combo, the JK swap is probably the most cost effective way to get a nearly bolt-on combo of decent 44's.
            Remember the broken JK axle tube discussion on here a while back?

            That is enough to turn me away from it.

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            • #7
              Well, I've got a busted D35 right now (totally busted). I regeared to 4.10's so I need to match the front with a less common ratio. I was looking at complete replacement axles in the 4WD cat and saw the JKs were like a whole grand less than the TJ. I'll probably wind up going with a junkyard D44 off a rubicon if I can find one.

              Just wanted some ideas. Thanks.

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              • #8
                Originally posted by LoTGoD View Post
                Remember the broken JK axle tube discussion on here a while back?

                That is enough to turn me away from it.
                2 out of the thousands of JK's out there.

                I still dont think the hassel is worth buying JK 44's. After you cut the brackets off and buy TJ brackets you might as well bought TJ axles..

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                • #9
                  They are the same width as F150 axles. You can pick up a set of real 1/2 ton axles (Jeep are considered 1/4 ton) for way cheaper than the very new JK axles. You would still need to address the bracket issues.

                  I don't see how JK's could be a better choice.

                  And not all JK's have 44's. If your going that route, why not just get some TJ rubi axles that will bolt right in? Makes no sense to me to go through all the hastle and $ for no realistic gain.

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                  • #10
                    all of them have rear 44's. with the exception of early 07 model years

                    But your right, its not worth the BS...

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                    • #11
                      Originally posted by JTs99TJ View Post
                      Well, I've got a busted D35 right now (totally busted). I regeared to 4.10's so I need to match the front with a less common ratio. I was looking at complete replacement axles in the 4WD cat and saw the JKs were like a whole grand less than the TJ. I'll probably wind up going with a junkyard D44 off a rubicon if I can find one.

                      Just wanted some ideas. Thanks.
                      Any rubicon 44 will have the 4.10 ratio.

                      You can find tons of 1/2 ton axles (ford 9", Ford 8.8", etc.) with 4.10 gears stock. Toss on a set of brackets for $300 and your set.

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                      • #12
                        I'm sorry....and, again, I have no plans to get them as I already have D60's....but you are not comparing apples to apples.

                        We are talking about brand new Rubicon axles, with disc brakes and lockers....not some junkyard 1/2 ton that no one will deny is cheaper.

                        Compare the JK axles with off the shelf new D44's for a TJ and you will see why some people think it's a great deal. You really are getting a lot for the price compared to other NEW axles.

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                        • #13
                          The biggest problem that hasn't been addressed is the 5 inch wider axle that the JK has.

                          TJ and JK your not comparing apples to apples either.

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                          • #14
                            I agree that they are wider, but from what I have read on the web about the new axles, they are far inferior to the old Dana 44's. How many times have you heard of the old 44's tubes busting by the shock mount? I haven't heard any, but there may be some. I would save some coin on them and try to find a rubicon TJ 44. Like said they will have a 4.10 gear ratio factory, unless they were regeared for bigger tires, and will slip right in.

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                            • #15
                              Originally posted by lilboy1023 View Post
                              Why would you want to? From what I am reading the axles went to crap when they changed everything. I am sure with enough fab work you could make them fit tho.
                              agreed, it would definitely fit with a little bit of mod work, but why would you want to get them

                              http://jrbrahamas.info/adver.gif

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