Wheel hub questions for 10 inch drums

I'd like to thank you all for help. I'm going to weight my options here and figure out my best plan of action. And to answer your question Murray. I had new tires recently put on the car and 2 of the snapped. The studs being 30+ years old or original is a bit of a scarey thing to me when you think about how many sets of tires or different wheels have been swapped from the car in its life