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« on: March 17, 2017, 07:50:45 PM »
In the tire world of the 1960's and 70's, each maker had their own coding. I only have the coding for the Goodyear tires.
With the discussion of the Polyglas being on Camaro/Chevelle in 1969, we have had several cars from around the April 69 time frame pop up. There are varying theories to this. Polyglas were available to other car makes. In fact, Chevy was the last to keep with the Speedway Wide Tread. The Corvette maintained the Speedway until the radials came out in 1973. It may have been a mandate from Goodyear, production stoppage of the Speedway and substitution of Polyglas. Unfortunately, paperwork from Goodyear and Chevy has not materialized.
Feel free to contact me with questions-- 816-654-3400
Rusty Small