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thanks for all the help it worked!!!!!!

Thanks. i will try and let you know how it works out

yeah that is the problem im having is finding a os like mine with a 80 in it. so far no luck!!!!!

what do you mean? the os number you gave me matches for a 2002 os how would i swap to a different base os??? Thanks

Im looking for a tuning file to do a segment swap to a 4l80E from my 4l60E on my silverado. either for a customs os 01250003 or original os 12202088 THANKS!!!!!

Im looking for a tuning file to do a segment swap to a 4l80E from my 4l60E on my silverado. either for a customs os 01250003 or original os 12202088 THANKS!!!!!