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Help with removal of a split case

Discussion in '40- & 55-Series Tech' started by SMG, Sep 18, 2017.

  1. SMG

    SMG SILVER Star

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    So I searched for this subject and I'm not having any luck.

    I have a 83 4Speed transmission with an attached split case that I need to remove.

    I do not need the 4Speed but would like to save the split case for a later install onto my 76 40.

    Does someone have a link or write-up on how to do this?
    I want to make sure I have all the proper tooling before I begin.

    Also, this trans/transfer combo is not installed and is currently on a cart in my garage.

    Any help would be greatly appreciated.

    Thanks
     
  2. cruiserpilot

    cruiserpilot

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    I hope you have a couple of hours to spend now. No special tools needed to take it apart, which you will need to
    do in order remove the front half of the case from the trans. You will need to order new gaskets and stake nuts
    at the very least. Take lots of pics of the 3 main gear assemblies as you take it apart. There are little shims that
    need to go back exactly where you took them out. I think there is a video that Georg added to the end of the thread.

    This would be a good time to decide how many miles on the case and whether a bearing rebuild is in order. It is
    coming apart to that degree when you split it and remove all the parts. Get a large plastic tub with a lid, and keep
    the parts in order.
    Honestly, if you can keep the thing assembled until you need it that would be the best advice. As usual taking it apart is
    an hour, but missing parts/where does that go? are forever.

    some h55f and split case tech
     
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  3. 3_puppies

    3_puppies SILVER Star

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    easy to separate and store in a tote

    the split case will not work on a 76 4 speed
     
  4. SMG

    SMG SILVER Star

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    True, I plan on using it with my NV4500 via Advanced Adapter.

    Great Video! Should help tremendously.
     
  5. SMG

    SMG SILVER Star

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    Dumb question, How do I remove the front output shaft/gear/bearing from the front side of the case? I’m pretty sure it needs to be pressed out?

    Anyone do this recently?

    Thanks

    C1F83261-BC0A-40E1-9E8B-2F17802BAB2B.jpeg
    91791F7C-3A99-4C88-9BAE-788C4182DAF6.jpeg
     
  6. roma042987

    roma042987

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    remove front seal and oil slinger then knock the shaft out. Then remove the retaining ring and knock out the bearing from the inside out.
     
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  7. SMG

    SMG SILVER Star

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    Thanks, I got the shaft and bearing out. I was really surprised how tight the shaft was into the bearing. At this point, I cleaned up the hafts and bagged all the parts. From what I can tell, all the gears and shafts look good. Now I just need to decide if I want to order a rebuild kit and swap out my single case.
    Currently my single case is in really good shape so I may hold off for now or just put it up for sale.

    Thanks for your help.
    8463E0CB-019F-4DEC-9798-1D088EEC72C9.jpeg
     
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  8. Living in the Past

    Living in the Past SILVER Star

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    Believe there is at least one person looking for a split trans case from a 83+ right now. Those have the provision for the fifth gear oiler. Unless you plan on a Orion case would buy a AA adapter for a split case and run this one.
     
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  9. FJ60Seth

    FJ60Seth SILVER Star

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    There’s a lot of split case info in the 60 section.