Just got an a833od from 1977 for a 65 barracuda

yha unfortunately I can't find a better one of the purple one, the only real diff is that that the purple one is an OD with all aluminum case and the orange one is a steel case close ratio from a big block dart.

This website has a lot of good info on the trannys.
http://www.slantsix.org/articles/4-speeds/ODA833fourspeed1.htm