This is a long shot but has anyone converted a 3.9l v-6 in a truck or van (2wd) to a 904 automatic?

I understand the bell housing is the same bolt pattern and the flywheel from the 3.9 is needed for the crank trigger to work. Because I don't have the two pieces sitting in front of me yet I cannot see if it will work. I know the 3.9 is not a super build able engine, but I want to try. Currently the engine is in front of a 4wd transmission which is going bye bye. I want to switch out to a 904.

Thank you,
Joe