Thanks Alan,
As an added note, Steve Been just reminded me of something that I left out concerning the lug/stud issue. The drum assemblies had counter weights that allowed them to be balanced just like the tires. The weights were sometimes drilled in order to get the desired balance. The yellow dot found on the pressed in stud was a quick reference inspection mark that allowed the tire to be mounted without the employee having to figure out where to position the wheel. I guess the engineers were a little more attentive to design issues than we give them credit for!