I have been comtemplating on whether I should buy a disc brake system or not. I plan on doing it in the future, but for now I can only afford a drum setup. To make a long story short, I bought a used rear end, which has no backing plates or hardware. I am trying to buy a rear drum brakes set, and I have found a few. My problem is that I do not know if they will fit. What do I need to measure? How do I measure it? How do I know if I have a "big" bearing, or a "small" bearing? Has anyone had any experience with the cheap ebay disc brakes setups I see? ANy suggestions? I only have $250 to spend for now. I do know that it is an 8" rearend from a 67 v8 mustang. Thanks guys!!! 