Trans change

I have a 88 truck with the 318-904 trans. I would like to put an overdrive trans in it (I have a 92 van with a 360 and od trans) is this possible without changing wiring harness and computer?

Might get your answer here. https://transmissioncenter.net/shop...ere-for-727-to-46rh-swap-wiring-diagram/

Thanks never thought of them and I have them bookmarked!