833 trans swap

I don't have much experience with a 904, but I have an 833OD and 3.23s.
The 4.10s might help, but with 3.23s the split between 1st and 2nd is pretty brutal. Between this and the aluminum case of the OD unit I'm starting to look for a older 833 nonOD trans. That said, I haven't had any issues with mine behind a 10:1 360. But I don't run slicks.