I know the buttons come with the 70 rad flap kit..not sure if you can buy them separately....I had a couple "loose" originals..sent one to a guy who was going to recreate them...forget how that turned out. I recently used the flap kit on my 70 th400 car..worked fine. Our 70 4spd has a 12C cowl date and has the buttons...that is right after your 12/15 date. This photo shows original flap and buttons.
wilma
