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Thread: 12606960 os

  1. 11-01-2015 #1
    72vega383
    72vega383 is offline
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    12606960 os

    searched the tune repository but couldn't find a 4l80e matching my OS 12606960.

    already licensed my pcm.
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  2. 12-18-2016 #2
    boostls2
    boostls2 is offline
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    Quote Originally Posted by 72vega383 View Post
    searched the tune repository but couldn't find a 4l80e matching my OS 12606960.

    already licensed my pcm.
    I cannot seem to find it either. I am trying to find something with a 4l80 that matches my 12606960. I was told chevy express vans but cant find any with this OS.
    Did you ever figure it out?

    The vehicle is a 5.3l 2004 Sierra.
    2001 Z06 - Blown (Sold )
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