i also have a question among the same lines. i have a 97 GTP and my girlfriend has a 93 lumina euro that has a 3.1 in it. we want to put a GTP motor in the lumina. What is needed? Can i use the trans that is in the lumina or do i have to get the 4t65e? i know the 4t65e is electronic so can i use the old one in the lumina or does the ECM need to be plugged into the trans? thanks