Some suspension and brake questions

So what you are saying is a small 4" bolt pattern drum will fit on both these spindles. Where are you going to get the hub with the outer bearing that will work on the larger spindle pictured and still fit the small registered 4" BP wheel? The bearing race alone is almost the same size as the small wheel register. I have that same spindle here and mine is off of a 72 Challenger. Probably where you got that one from, Your car .

this is your picture s-l1600-34-jpg-jpg.jpg