Tire sizes w/ spring relo kit

Once you get you springs relocated, start measuring so you know exactly what will fit, going off what someone else did will give you an idea but may not work for your car. I just measured and put 255-60-15 on the back of my 68 dart. Some people said they would and some said they would not fit. I have stock rear, SS springs and Moser axles, stock steel wheels with 4.25 back space and 7 inches wide, no other mods done.