Tommy,

There are several of us in the club who use this tire (including Mike I), Diamondback Classics. You can reach them at Classic White Wall Tires - Vintage Tires - Redline & Redline Radial Tires for Antique and Classic Cars or phone 888-922-1642. They are familiar with amphi tires. The size is P185/80R13. The whitewall size is correct. I now have almost 5 years on mine with no problems. I also run tubes in mine, which they also have. PS: they are expensive.

You are correct the Coker or Universal tires (same as Coker) have a tendency to yellow and crack. I have Universal’s on my 55 and they turn yellow within a week of cleaning no matter what you use to clean them with.



        
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