I have not seen any dents like you are describing on any of the Deloreans that I have looked at. I am still using the original regulators that have been updated with my $5.00 fix. (2 years and still going strong) I have been inside the doors of a few Deloreans and I have never come across one that showed any signs that the regulator was making contacted with the door. And just another thought, the new regulators mount the same as the originals. I am really at a loss how you are getting that dent in that location. The glass window, keeps the regulator secure at the top and the motor is bolted to the bottom of the door. There is only the cable housing and the cable,(that runs inside the housing)that is located at the center of the door. Robert Starling Vin#05252