I have a 1966 Ford Mustang Coupe and i am replacing the driverside 1/4 panel and I was just wondering what is the full length measurements on the 1/4 panel. I need the very top, mid section and bottom measurements. I have an Repro skin and it looks 1/4+ bigger than i need.

 

I am not surprised at that. These cars, by today's standards, had awful fit and finish. Even with the best replacement parts, I would say that you are bound to find issues when replacing a body panel. You are probably going to need to find a bodyshop that knows an older gentleman with early Mustang bodyshop experience, and get his advice on how to fit it properly. Even then, depending upon how particular you are, additional bodyshop work may need to be performed. Also, when you say 1/4 panel, are you referring to the front or rear 1/4 panel? Good luck, and let us know what needed to be done.

 

It is the rear driverside 1/4 panel!

 

Thought so, some refer to fenders as a quarter panel. Not sure if measurements off of a fastback would help.