The Kelsey-Hayes Disk Brake Swap Thread
MBM Standard Small Bolt Front Pattern Rotor
Guys.
Check this out.
Evidenatally there now is both a hub and rotor assembly for the Kelsey Hayes, 4 inch, small bolt pattern, disc brakes.
You don't have to find unobtanium, dinosaur eggs, hens teeth, obsolete, bare hubs anymore.
Thought I'd pass this on to the readership, as someone turned me on to this part.