Correct. Disk hubs are totally different than drum. The rotor bolts to the backside of the hub. The lower ball joints are also different (larger bolt holes).
I do need to get new lower ball joints - forgot the mention that. But, those are easy to find. I may go ahead and change out the uppers as well. But, I didn't really want to change out the UCA's and change over to the BBP for the wheels.
I was under the impression that the way the hubs and rotors worked was for a longer wheel stud to be pressed and it would go through the rotor (with a shoulder for that part) and then through the hub (where it has fine splines)?
I've seen what you are talking about in the FSM with regard to bolting the rotor to the hub but I thought those were for Budd brakes (which I've never seen anywhere). But, I am certainly liable to be wrong on that one.