New information. I just looked at my spare, which I believe to be original, and it is an A70-13 RWL Goodyear Polyglas. After doing some research, I found that many Pinto models came with this size stock. According to the conversion charts, this size is equal to a modern 175/70-13. I found a dealer that has plenty of these, as well as 185/70-13s, which should be just slightly larger in diameter than the 175/70. These tires are wider and not as big in diameter as the 185//80-13s I currently have, but they are the closet thing I can find that are not trailer tires. Unfortunately they are available only in blackwall, I have narrow whitewalls, and would prefer those, or RWL, but the only place I can find those is from Coker Tire, and I don't want to take out a second mortgage. This car is a daily driver. So does anyone see any problems (other than cosmetic) in using the 185/70-13 tires? Thanks a lot, Jerry.