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Thread: tranny qustion

  1. #1
    Join Date
    Mar 2017
    Posts
    7

    Default tranny qustion

    my tranny has 2.56 second gear if i go to a 2.10 second gear what will the rpm,s drop thank you

  2. #2
    Join Date
    Nov 2007
    Posts
    152

    Default

    Depends if you are running in 2nd gear or not. Lol

    Calculate the final ratio.

    Trans gear ratio times rearend gear ratio equals final gear ratio.

    divide engine rpm by old final gear ratio to get axle rpm.

    multiply axle rpm times new final gear ratio to get new engine rpm.

    That's keeping speeds the same.
    Last edited by 95shaw; 05-04-2019 at 12:22 PM.

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