dude ok today my mechanic called and gave me the update for my truck. it seems that he thinks i need to get a 4l80e cuz 4 some reason they cant get the pcm to change over and recognize the 60e. they installed a stock 5.3 tune, and nothing changed. the idle they set at 600 or so, but they cant get the truck to go into first gear(it starts out in second gear), also the overdrive isnt working. ALSO, they can get it into 3rd but after that it wont downshift at all until the truck is turned off. im running outta patience, does anyone know a solution other than getting a new tranny? plus id eventually like to have a 65e instead of the power draining 80e. its very frustrating, but i wont bash this mechanic, hes done a great job so far, just getting a lil testy cuz money and time arent in my favor at this point.