not sure if this is relevant. but in my 2002 chevy silvy I was building I put a 1997 4l80e in it. I went with the 97 due to both cooling fittings being in front instead of the tube running inside. all I did was a copy a 2002 2500 truck table in my pcm and it worked fine. if it worked in my 02 I don't thing a darn thing is different.