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Thread: 2017 T43 cal file

  1. #1
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    Default 2017 T43 cal file

    I'm trying to find calibration #24275084 for a t43 controller. I haven't had any luck. The tune file drop box list doesn't have it. If anyone has it and is willing to post it that would really help me out.

  2. #2
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    The OS on the new t43 is 24254909 and this is the list of compatible trans OSs I found {24252573,24254909,24256025,24257135,24256065} The old t43 had OS 24276638.

  3. #3
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    It seems like the tcm gm sent us has an OS that isn't compatible with what the truck had.

  4. #4
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    If I'm missing something I would appreciate being clued in.

  5. #5
    Joe (Moderator) joecar's Avatar
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    More info...

    why do you need 24275084...?

    What was already in the TCM...?

    What year/model/vehicle...?

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