Quick and dumb driveshaft question

pishta said
Im gonna go against the grain and say tapered end toward diff. My theory is if its going to break at the weakest point (narrowest area), you want the tail to break not the head.....
Notice inertia yoke at trans end and tapered end at yoke.

Dana67Dart said
I agree!

Mopar A body.
Also, I shortened my driveshaft when I put the 42RH trans in and I would remember if the yoke was then too small at the back end.:D