Are all manual transmission small block bell housings the same?

It's in a Ramcharger. But it's not the original engine or transmission that it came with.
I have no idea what it is. But when I picked it up I asked the guy if it was an A-833.
He said if it was it wouldn't be in there! :lol:

It does have Bull Low though. So maybe it came out of a 3/4 ton? IDK.

Edit; Just trying to sell the bell housing, especially if it'll work for someone that needs one for an A-833. I take it from the way the guy was talking to me he didn't think the tranny itself was worth anything.
It will not work for an 833.