Rear Disc Issues - 8 3/4” Rear Disc Conversion Kit

I think I would either fab bushings that slide tightly (crimp?) over the studs and into the studholes in the rotor, or,
I would make internal threaded bushings/colars that thread onto the studs all the way down to the flange with some Loctite so the rotor at least centers itself on the studs. But I think the resulting 0.075" wallthickness of the colar will not be sufficient to make threads in.