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  •  » FYI Ford, Classic Mustang Tech Discussion
  •  » Anyone have an AOD Governor or output shaft sitting around?

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    10/07/2021 8:36 PM  #1

    Bentworker
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    Registered: 9/17/2017
    Posts: 472

    Anyone have an AOD Governor or output shaft sitting around?

    I’m trying to figure out the dimensions of an AOD Governor to see if I can stick it on an FMX.

    If you have one and are willing to measure it up for me please do.  (ID of gov, or OD of shaft).

    Thanks,
    Peter

     

    10/08/2021 10:14 AM  #2

    Rudi
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    From: Stuck in the 50's Welland Ca
    Registered: 4/01/2013
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    Re: Anyone have an AOD Governor or output shaft sitting around?

    Can you better describe the part or a blow up drawing of the part?
    I have a complete AOD but am reluctant to disassemble it.
    There are the two shafts on the input end but don’t know where the governor is.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    10/08/2021 11:46 AM  #3

    Bentworker
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    Re: Anyone have an AOD Governor or output shaft sitting around?

    You would have to grab a pair of external snap ring pliers and a 13 mm socket / ratchet.  The extension housing bolts have to come out, remove extension housing.  Remove gov snap ring and it will slide off the shaft.  

     

       •Thread Starter
     

    10/08/2021 11:49 AM  #4

    Bentworker
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    Re: Anyone have an AOD Governor or output shaft sitting around?

    Here is an FMX Governor for reference.  These are the measurements I am looking for on an AOD.



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    10/08/2021 1:20 PM  #5

    Rudi
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    From: Stuck in the 50's Welland Ca
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    Re: Anyone have an AOD Governor or output shaft sitting around?

    The transmission has oil in it so I guess it would have to be drained . . . correct?

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    10/08/2021 2:38 PM  #6

    Rudi
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    From: Stuck in the 50's Welland Ca
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    Re: Anyone have an AOD Governor or output shaft sitting around?

    Ok, here is what found.
    Bore is . . . 1.6265
    Thickness is . . .. .8735

    Last edited by Rudi (10/08/2021 2:42 PM)

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

    10/08/2021 4:13 PM  #7

    Bentworker
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    Re: Anyone have an AOD Governor or output shaft sitting around?

    Thanks Rudi!  I really appreciate you taking the time to pull apart your transmission and sacrifice some transmission fluid.

    Looking like I would have to bore out an AOD Governor to use it on an FMX.

    The purpose behind this whole mess is to get my FMX to shift 2-3 later at WOT.  Transgo makes a kit with a lighter spool for the AOD Governor to make it shift later.  Nothing exists for the old FMX and the internal spool is really- really hard.  Far beyond what can be cut with HSS tooling.  I hit it up with some carbide tooling but I was not able to make much of a weight difference.  I’m going to give my modified gov a try and if it does not get me where I want to go I may try boring out an AOD one.

       •Thread Starter
     

    10/08/2021 5:16 PM  #8

    Rudi
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    From: Stuck in the 50's Welland Ca
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    Re: Anyone have an AOD Governor or output shaft sitting around?

    You are welcome Peter, glad to get you the info you needed.

    Good work ain't cheap, Cheap work ain't good!   Simple Man
     

     

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  •  »  Anyone have an AOD Governor or output shaft sitting around?

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