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T-case interchangeability

Discussion in '40- & 55-Series Tech' started by hammerhead, Mar 30, 2004.

  1. hammerhead

    hammerhead

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    My 69 3spd t-case has a worn output shaft and high-range gear bushing. Will the output shaft from my 74 4spd t-case fit in my 3-spd? Is the shift sleeve the same? Is the shift fork the same? I can't tell from any of my books. Is there a site where I can look up toyota part numbers to cross reference?

    I'm getting ready for Moab and time is getting short. I didn't count on things being thrashed in my 3-spd t-case.

    Aaaaaahhhhh!!!
     
  2. fj40mayo

    fj40mayo

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    I'm thinking that the shift sleeve is different. I have a 3sp case to 4 speed transmission and I had to get the longer shift sleeve (or whatever its called) from a 4 sp case to make the linkage work. Not sure about the output shaft. I think youre running a 465?, so none of this may apply. ???
     
  3. hammerhead

    hammerhead

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    I am running a 465 tranny with the 3-spd t-case using an adapter plate.
     
  4. Poser

    Poser Oh...Durka Durka Durka. s-Moderator Supporting Vendor

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    Pre-5/75 fourspeed t-case mainshafts are the same as three speed units, and all until the split case use the same range selector fork and collar, according to Marvs site...

    http://www.sor.com/sor/products2.tam?xax=10572&category.ctx=070-20&page#.ctx=070


    IIRC the front drive engagement collar, front shaft, and mainshaft splines change in 5/75, so, if you have all of those parts too, you should be able to put something together and get you going with what you have.

    Good luck!

    -Steve
     
  5. hammerhead

    hammerhead

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    [move]THANKS!!!! THANKS!!!! THANKS!!!! THANKS!!!! THANKS!!!! THANKS!!!! THANKS!!!! THANKS[/move]


    It looks like it will work. Now I just hope I have the time!
     
  6. Poser

    Poser Oh...Durka Durka Durka. s-Moderator Supporting Vendor

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    " Now I just hope I have the time! "

    Ain't that the truth...