Hey Rob, I believe that Larry is probably correct(he usually is about these cars). The reason I say probably however is that I ordered a replacement license plate light from one of the vendors a couple years ago and the one that I received looked quite similar to the one that you pictured. It was in a sealed bag with the factory DeTomaso logo on it. When I called the dealer, they told me that the unit I received was the replacement from the factory and it required use of 2 and enlargement of the 2 holes. I don't remember if I sent it back or put it in my stack of Pantera "treasures", but in any event I didn't use it.
Gary #06984
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