1964 Dart Heater Wiring ?

The heater case is grounded to a sheetmetal screw behind the right kickpanel on 67 up.
I dont know where the factory put it in the first gen cars but chassis ground is what it is. Just about anywhere would work. Good luck
I looked and looked I would like to put it back to the original ground position for 64 Darts but cant seem to find the place or hole to put the ground screw in I know that I took it out somewhere I should have labeled it with a piece of masking tape but I dident.