OK, future reference IF anyone else needs to remove the brake pedal master cylinder rod. Since the pin is installed against the frame and there is virtually no access for a cutoff tool, you take a Dremel tool and put a grinding stone in it. Then you work for about an hour to grind the head off the pin. Then you beat on the fork the pin inserts into it and if you are lucky it will come loose. Then head to a hardware store, acquire a new insert pin and install it in from the outside side so if you ever need to access it again, you'll be ab le to. A cotter key retains it from moving anywhere.
