I'm about to send my '71 in; after 13 yrs.; for a refresh paint job and to fix some minor dings and scratches. I am curious about a hole, about 3/8 diam., in the middle of the rear valence, below the bumper. It almost looks like it could be for wires for a trailer hook-up, but there is no evidence that a hitch was ever on the car. Did they come from the factory like this, or did the PO drill it for something? If it doesn't belong, I'd just as soon have it filled in.

There is no reason for the hole. Get it welded shut!

I have that hole too. Mine was from a trailer hitch i removed when i bought the car. That's probably where yours came from too...