Hi Moparts , update , I did get my new rear tires in from cooper in the 255-70-15 size , and they are perfect compared to the 275-60-15s i'm replacing . The next question is cooper changed the Font of the white letters VS the old tires . and the new tire letters look bigger and slightly slanted . Here we Go , New White letters out , or Black Side Walls out using American Racing Torque Thrusts Rims mounted on a dark green 1969 Coronet with black vinyl top ?