360-904 match

Hi!
Might be a stupid question, but i cant seem to get my 73 360 to fit right with my 75 904. suposedly been driven before, but not in the last 20 year. It’s a 75 duster. Does anyone have some advice here?

sorry for the bad english, been a long time since my english lessons here in norway!

thanks in advance

What do you mean by "not fit right"? Bolt pattern of transmission to back of block, or converter to flex plate? Converter into transmission?
Your English is MUCH better than my Norwegian, don't worry about it.