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T90c Question?

Discussion in 'Early CJ-5 and CJ-6 Tech' started by 1957Willys, Aug 12, 2018.

  1. Aug 12, 2018

    1957Willys Member

    Birmingham, Alabama
    Mar 23, 2012
    I have been reading about the T90A and T90C transmission and in this thread on the CJ2A page it talks about the shift from 2nd to 3rd is pretty bad if you are running 5.38s in your axles.

    T90a to T90c...need for clarification
  2. Aug 13, 2018

    Keys5a Sponsor Sponsor

    Jan 23, 2014
    The T90C has a bit lower 1st gear. This essentially makes wider ratios than the T90A. Each gear has a little more gap with the wide ratio version. I have had both transmission versions with 5:38 gears and really never notice the difference. You can tell the difference with 4:27 gears, but its pretty subtle, and only notice when pulling away from a stop in 1st.
    I would use whatever version you have with the best parts condition.
    Jrobz23 likes this.

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