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Thread: 09373372 OS need 4l80e Segment swap

  1. #1
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    Default 09373372 OS need 4l80e Segment swap

    I am looking for the segment swap for a 4l80e . Also any help on doing this would be appreciated.
    Thanks

  2. #2
    Joe (Moderator) joecar's Avatar
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    Might be hard to find that OS running a 4L80E...

  3. #3
    Joe (Moderator) joecar's Avatar
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    If you can flash in 12212156 then those would be easier to find.

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    is the 09737372 not an 2001 operating system? should I not be able to find a 4l80 truck running that system? What is better about the 122121565?

  5. #5
    Joe (Moderator) joecar's Avatar
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    09737372: I can't find any with 4L80E
    12212156: I found a few with 4L80E

    it's not a matter of "better".

  6. #6
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    how do I switch over to that os?

  7. #7
    Joe (Moderator) joecar's Avatar
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    You do a full flash of the new OS file, but first you also have to manually bring over any tables that are different from your old file.

    Then you double check all the tables (look at new and old files side-by-side).

    Then after you full flash the new file, make sure vehicle runs at least as good as on old file.

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