It depends if the car was ordered with drum or power disc brakes. The original wheels and tire were 8.25 x 14 inch. Disk brakes needed the 15 inch wheels to clear the 11 inch rotors and calipers. The tire size would be 8.25 x 15 inch. G70 x 15 tires were optional. Ralley wheels were optional with G70 x 15 red lines. 8.55 x 15 were standard on the station wagons. The repops are generally radial tires now. I run P225 78 15 tires. Coker tire will tell You what You need. NICK L72