Difference from A-body to B-body A833?

http://www.slantsix.org/articles/4-speeds/ODA833fourspeed1.htm

http://www.bigblockdart.com/techpages/abconv.shtml

http://www.bigblockdart.com/techpages/4sptech.shtml

The tail housings are different as are the shifter mounting locations and linkages...

Hope this helps.