72 340 4 spd question

Be careful, it could very likely be an overdrive 4 speed..... not that there is anything wrong with that. Is it an aluminum case? Do you have any pictures? Being long tailshaft and from a 360 is the tip off......

Yes, long tailshaft 4 speeds can be made to work in an a body, they are the same overall length as a 727 auto. You will have to fab a custom shifter mount, there are instructions floating around the net.

Chrysler 833 4 speed trans.
That's the link. I called the guy earlier and it's his sons. He doesn't know much because he says the 4spd is the same the hemi cars used. But it's not an 18 spline so not the same.