Re: Goodyear tires
Kelsey Tire may be correct that the Polyglas tire was not used by Chevy until 12/69. I remember reading something about Chevy Engineering being slow to approve the polyglas tires for high speed applications. Chevy stuck with the old design nylon cord Wide Thread GT and Speedway tires on the hi performance cars and Corvette until the Polyglas tires had been real-would tested by the other manufactures.
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