Hello all -New to this forum

I'm trying to make sense of transmission ID/compatibility.  I'm dealing with a 1986 carburated PU.  The five speed went out and I've determined from the firewall trans code plate, and the fact that it has an 8 bolt retainer, and 4 bolt shifter plate that it is a g 52 trans I hope I've got that straight.  Any help would be greatly appreciated and also any insight on what other transmissions options would be compatable/preferable.  Do 22re engines use the same bellhousing bolt patterns etc. ?  Thanks in adavance
Tom