275/60/15's on 15x7 cop wheels on a 71 Dart?

I run 275/60/15s, It's tight. Stock suspension setup. You might have to roll the lip of the fender or beat them out slightly I only rolled the fender lip. I run 245/60/15 on the front, which is also very tight. Both might require some minor body modifications as the bodys of the cars can vary slightly.