Muncie M-20/21 or T10 users?

Might want to check QuickTime.....whoops I mean Lakewood for the adapter. Muncies were aluminum cased were they not?? Had a friend "back in the day" with a 750 HP BB Vette that we pulled the trans out of more times than I care to remember. I have tortured both the 833 and a top loader, either one is a stout trans......