What I've learned from Monte's rant:
I can live with the 9" Ford under my Valiant.
I can live with the Dana 60 under my Barracuda.

Maybe the rear ends aren't the wrong choice, maybe going 1.teens at 2900lbs or 1.0h's at 2700lbs on a small tire is the wrong choice! Just because you CAN, doesn't mean you should!!

Carry on.
I'm glad someone is out there constantly pushing the edge, so that I can learn what works and what doesn't without shredding my wallet in the process!