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Hubs interchangeable from 1/2 ton to 3/4 ton?

Discussion in 'The Garage' started by stallion85, Sep 14, 2005.

  1. stallion85

    stallion85 1/2 ton status

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    Hubs interchangeable from 1/2 ton to 3/4 ton? Is this true? I got a line on a whole D44 I am going to grab for some spare parts for Moab and was wondering if I could use the hubs too.

    Thanks :wink1:
     
  2. big83chevy4x4

    big83chevy4x4 3/4 ton status

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    the lockouts will, but the bearing hub will not as the 1/2 ton are 6 lug and the 3/4 ton ... blah blah
     
  3. TrcksR4ME

    TrcksR4ME 1/2 ton status

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    There are two versions, big bearing and small bearing. Not sure if the spindles are different as well on those models, but they may be.
     
  4. divorced

    divorced 3/4 ton status

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    small bearing hub = small bearing spindle
    large bearing hub = large bearing spindle

    I'm not sure if there is any rule on how to tell what size bearings the spindle has without disassembling it, but I have noticed that all of the ~pre-76 D44's with flat top knuckles I have taken apart came with the small bearing spindles, and the non-flat top knuckle D44's and all 10 bolts had the large bearing spindles. This is just what I have noticed from the dozen or so I have owned, so it may mean nothing at all.





    ;)
     
  5. stallion85

    stallion85 1/2 ton status

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    It has flat tops on it and I believe it is from a 75. Hmmm, oh well.....at least the shafts will do me some good. I could probably sell those flat tops for and just buy some hubs :rolleyes:
     
  6. divorced

    divorced 3/4 ton status

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    I would take it apart and check it for sure, GM did some strange things back then. If you can't tell the difference, just post up a pic of the spindle.
     
  7. Beast388

    Beast388 1/2 ton status

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    That has been my experience as well. Here is a pic of the 2 types of spindles for reference. :D

    [​IMG]

    The large one is on the right. :D :D :D
     
  8. stallion85

    stallion85 1/2 ton status

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    took me a minute to see the difference, but I see it now.....thanks Beast :wink1:
     
  9. bigjbear

    bigjbear 1 ton status Staff Member Moderator

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    ...if they are both internal spline.
     

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