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Thread: Transmission output spline sizes

  1. #1
    Supporting Member II Turbo Mopar Contributor jeff1234's Avatar
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    Transmission output spline sizes

    Is it correct to say that there are two sizes of output splines for all of the manual FWD transmissions? or are they all the same size?
    Last edited by jeff1234; 03-03-2019 at 10:11 AM.
    The only substitute for cubic inches is cubic dollars, how fast can you afford to go?

  2. #2
    Supporting Member II Turbo Mopar Contributor Dr. Johny Dodge's Avatar
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    Re: Transmission output spline sizes

    2 sizes of axle splines used .. for all transmissions , manual AND automatic large spline starts in 87

    EXCEPT the manual omni's after 87-9 (all still 525 trans , small spline)

    this is why you use the late model omni auto axles to put a 520,555,523,568 trans in an omni or charger

  3. #3
    Supporting Member II Turbo Mopar Contributor jeff1234's Avatar
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    Re: Transmission output spline sizes

    The Dr. Is in! Thanks much Dr. "J"
    The only substitute for cubic inches is cubic dollars, how fast can you afford to go?

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