Hello there! How are you doing?
So I changed the transmission hoping to get it working just by changing the VIN... did not work... so after a lot of reading I discovered that I need to find a compatible OS. Either on Chevrolet TIS or a set of Efilive files.

Does anybody have the pair for this combo? Could not find it on the dropbox. I attached the read of the current ECM and TCM modules.

Thanks!E38.ctzT43.ctz

E38 OS is 12654075
T43 OS is 24270599