I have front disc brake issue, front spindle mounting bolt hitting sway bar mount on MBM disc brake kit? Need your help

I have no idea where to find that even dr diff says all abody no matter what year use 5/8” i dont know to believe at this point. 1/2” 5/8” too many people with different knowledge that all oppose each other.
early 67~72 use 1/2"
late 73~76 use 5/8"

you could always measure yours to confirm, that would take all the guess work out of it.

this is the problem with mixing and matching of components, even if you know what the parts are there are so many granular details that exist.