working on my 68 fastback, bought new rear quarters and in test fitting the right rear it is coming up about a half inch short of the decklid edge. It lines up perfect with the rear window lines, and we have a solid point of reference. I think these quarters were manufactured incorrectly. They are made in Taiwan, and I shopped hard looking for american made fastback quarters but was unable to find any. Has anyone run into this using aftermarket parts? What are my options?