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The Anghel restorations site used to have a PDF document that had all the GY date coding systems from 1952 until DOT standardization, but it is not online anymore. Luckily I saved a copy!
According to that document, the beginning 9R means March 1962. Does that jibe with any history you have on your tires?
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Jeff Helms 65 Z16 Survivor 65 Z16 drag car 66 Chevelle L78 unrestored 67 Chevelle L78 unrestored 67 Camaro SS350 Survivor |
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