Hey Walt, What a great observation! Had my car for 20 years and always assumed the minor dimple in the door ( exactly where you said it should be ) happened during assembly. It was on my list of "things to do". It never occurred to me to look at other cars. I assumed it was unique to my car. Guess I'll take a look next time I'm in the door. Nothing on the passenger side. Original regulators. Nice heads up ! Bob Zilla