RE: need help with fender
I'm not sure what year your Stang is, but on my 66 there is a bolt at the top of the door jamb. If you open the door and look in at the top you can see it. I just disassembled my whole front end and noticed that this bolt was missing on the passengers side, and the fender was up against the windshield trim, causing a scuff in the paint. Sounds like you may have the same problem.