I have a miyata and I was over tightening the rear wheel the past few years and the dropouts started spreading apart and it was wearing away the metal around the nut on the dropout. I can't take pictures, unfortunately, but I'm thinking I could just bend the dropouts back and get a frame builder to braze in the area of the dropout the got eaten away by the nut.
Anyone know of any frame builders in the Chicago area? Preferabley in the south or west suburbs.