I am getting down to finishing the interior and trim on my 58. I got some bumpers for the doors but when I got to putting them on I could find no holes. I do not think the body had any work done on the rear of the doors or the areas behind the doors. The bumpers I have look to be mounted by pushing them into a hole. My car was built in early November 1957. Could they not have used the bumpers early in the model year? Maybe I am trying to put them in the wrong area but I would think they would go around the rear of the door. Any suggestions would be appreciated.

Thanks Dale