I recall that the flat spotting issue with tires was because of the tread reinforcement material. I think that nylon cord was the problem, but was resolved when the manufacturers went to polyester cord as well as steel belting under the tread. I'm no tire expert, but if your tires are that old, they probably need to be changed out for safety anyway.


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.