Rear drum brake setup

I have a 78 b100 super slant six. I didn't check the rear end at the time if it's 8 1/4 or 3/4
Also have a 76 sportsman 300 with a 9 3/4 Dana 60 a727 trans and a tore down 360. But that rear end is over kill for a slant lol
I bought them both in December I think and still haven't picked them up due to moving to a different area and the fact that it's hard to get a friend to help move and borrow a big enough trailer when you only have a few friends in the area to begin with lol