Vette496, I started this thread I have had nothing but problems for over a year now. I am running the 2006 GTO TCM setup I'll have to look and see which one. I can not say that any of them work. I can not get any transmission to last over 500 miles. I had the first one rebuilt 4 times it would wipe out 3 gear every time. Found another core had it rebuilt and it would wipe out reverse before you could back out of garage. The one I have in the truck now has about 100 miles on it and the 4X4 transfer case locked up and broke the drive shaft going to the rear wheels. I do not know if the trans was hurt have not pulled it out yet. If you would like to know what files I'm running let me know and I will look them up.

Please if you ever find something that works let me know thanks.