I have a 1994 chevy 2500 4x4 that has a 4l60e in it. I want to install a 4l80e. I have a 4l80e tranny and transfer case. Will the ECM that is in the truck work or do i need a stand alone trans control module? If the ecm will work what do I need to do to wiring. It is an OBD 1 system.
