Repair was simple (just lift off the old and put on the new). What was pleasantly surprising was how quickly I received the parts (amazing)!
Lastly, I've been looking for the correct parts/sizes in stores for years (yes, I should have tried this sooner). I was delighted to finally find a place that actually had the correct parts.
1. Removed the back panel. 2. Disconnected the wires from the old switch while connecting wires to the new switch one at a time. 3. Installed the new switch and broke off the excess metal on the post which fits into the burner knob on front of the range. 4. Replaced the burner knob and replaced the back panel.
Successful repair to Our GE range, manufactured prior to 1965 (when installed in house). Pulled range from wall, unplugged, removed burned-out broiler element. Previous check with GE to make cross reference of range part number to Part-select part number for this nearly 50-year-old range. Obtained new part and installed. Works. Range has self-cleaning oven, accidentally destroyed thermal switch attached to element mounting bracket, difficulty with frozen mounting nut. Self-cleaning still works; thermal switch locks out a solenoid which defeats door latch; prevents premature opening of oven door when oven too hot to open safely. Internet search did not find GE part but there are generic devices of the same type available; will consider installation later.