I was just making sure I was on the same page.
Do you just use a big ass pry bar to spread the case a little to slide in an extra .001"-.002" shim on the right side? Or did you fabricate some sort of turnbuckle with plates on the ends to bolt to the case to help spread? I'm curious.
OP, I would first take it around the block a couple times and see if they make any noise first before you drive it all the way home.
Closer to the latter. The guy that installed my gears the second time worked for Ford, so he had the Ford case spreader. IIRC, it was a square that bolted to the case and you cranked it to spread it apart.