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What happened???????

Discussion in 'Early CJ5 and CJ6 Tech' started by Aaron, Apr 24, 2006.

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  1. Warloch

    Warloch Did you say Flattie??? Staff Member

    With the way that gear has bounced 9 out of 10 times (in my past) there were problems with the synchros and needle bearings for your 2nd 3rd cluster... Also check 2nd on the main shaft as the tourque can mess with it as well.
     
    Warloch, Apr 26, 2006
    #21
  2. MCSCOTT

    MCSCOTT Member

    Must be a pretty common thing with the T-90's. I got two extra ones with a Jeep i bought this past weekend and the input shafts are trashed in both of them.
     
    MCSCOTT, Apr 26, 2006
    #22
  3. Aaron

    Aaron Got Primer?

    Yeah the countershaft has chewed up teeth too,I will findout what else is wrong when i pull it out on friday.whats this 3.44 to 1 first gear you arte talking about?????????
    ps(sorry for the confusion Glenn i was only calling the main shaft because in the manual and catalog they list it as the maindrive shaft)
     
    Aaron, Apr 26, 2006
    #23
  4. w3srl

    w3srl All-around swell dude Staff Member

    The pickups with a T-90 trans had a slightly lower (higher numerical) first gear of 3.44, and a second gear of 1.85 as opposed to the garden-variety T-90s which had the 2.98 and 1.66 1st and second gears. Both versions had a 1.0:1 third gear.

    I have no experience with swapping the internals on these transmissions, but it is probably safe to say that just about everything inside the trans would need to be swapped in order to make this swap. It sounds like you are going to need to do this anyway, so do your homework and go for it!

    A call to Herm the overdrive guy or maybe Novak would be a good starting point, IMHO.
     
    w3srl, Apr 26, 2006
    #24
  5. 80cj

    80cj Member

    To change to 3.44 the only things needing to be changed are the input shaft and the cluster gear. Had a 64 CJ-6 that had those gears in it. To much of a rpm drop between 2nd and 3rd. Didn't like it because it felt like a 4 speed that was missing 3rd gear. Didn't go well with the four banger and the grades that I had to ascend to get to favorite hunting and fishing areas. Eventually swapped out the gears to the 2.98 long input shaft when I did a Chevy V-8. conversion.
     
    80cj, Apr 27, 2006
    #25
  6. mortten

    mortten I can’t put my finger on it 2024 Sponsor 2023 Sponsor 2022 Sponsor

    I've got 2 T-90's sitting in the shed. One out of a 46 2A and one out of a 65 CJ5. Don't know how far away Butler is from Akron but you welcome to come and look.
     
    mortten, Apr 28, 2006
    #26
  7. Aaron

    Aaron Got Primer?

    Thanks for the offers,appreciate it. But im in the process of getting another trannsmission from a member in the local jeep club
     
    Aaron, Apr 29, 2006
    #27
  8. $ sink

    $ sink Gazillians of posts

    So.... How were the cows?
     
    $ sink, Apr 30, 2006
    #28
  9. Aaron

    Aaron Got Primer?

    Oh,they were fine,after the wild dogs ran away
     
    Aaron, Apr 30, 2006
    #29
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