How does the headlight switch come out on a 70/71? I don't see a set screw on the knob. I know on some of those style switchs the shaft comes out, but I can't figure it out.
Reach around behind the dash. On the switch is a small button. You have to hold this button down and simultaneously pull the shaft out. Once you do that, the switch comes right out, assuming you have the retainer nut on the front loose already.