The '70 Manual said most of these came with a C78-14 which is equivalent to a P185/75R14. I had that size for a spare for many years and its basically the perfect size that fits in the spare tire well too. (OD 24.92")
Thank you. I think I want something with a little more tread on the ground than a 185. I'm leaning toward 205/70/14's. The rims are 6 inches wide so I think the 205's will fit those pretty well.
