Adapter?

Thanks 340mopar, that is something like what i was thinking, a wheel like that.
Busted knuckles, the tire for my spare, I was thinking of getting the narrest tire but the same dia as the rear tire. So I would not have to worry about the dif. Although my dif is open as of now.
69 modtop, I too have the KH brakes. I like the thought of having 4-piston calipars. I don't think the 73-up have 4 piston. I have found a 78 Valarie with disk brakes. As long as I get the spindles hub, rotors, calipars and cal brackets should work with 73-up upper control arms, which I have already.
Thanks guys for the comments.
Jeff