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The Supercar Registry (https://www.yenko.net/forum/index.php)
-   Technical & Restoration (https://www.yenko.net/forum/forumdisplay.php?f=86)
-   -   Tire dates ? (https://www.yenko.net/forum/showthread.php?t=168334)

Charley Lillard 08-09-2021 11:44 PM
Tire dates ?
 
4 Attachment(s)
Can someone explain these dates ?

Charley Lillard 08-09-2021 11:48 PM
1 Attachment(s)
……

AnthonyS 08-09-2021 11:51 PM
Hi. 37th & 45th week of 1992, 1982, or even 1972 maybe.

I believe four digit dates (last two of last two of year) started in 2000.

They’re at least nearly thirty years old.

Cheers.

Charley Lillard 08-10-2021 12:25 AM
They are Goodyear Wide Tread GT. Did Goodyear continue making them after they went to Polyglas ? Repo ?

AnthonyS 08-10-2021 12:26 AM
Last photo above is 48th week of course, exact year ending in “2” still unknown.

AnthonyS 08-10-2021 12:27 AM
Made in USA or Argentina?

Charley Lillard 08-10-2021 12:54 AM
8 Attachment(s)
Usa

Lee Stewart 08-10-2021 12:56 AM
Goodyear Polyglas Tire Date Coding:

http://anghelrestorations.com/upload...tires_v1.3.pdf

Charley Lillard 08-10-2021 01:06 AM
No tread wear indicator and no safety warning.

Lee Stewart 08-10-2021 12:32 PM
Those tires were made in or after 1971 which is when the United States Department of Transportation mandated all tire manufactures use a standardized 10 digit DOT Tire Identification Number.

Goodyear Wide Tread GT RWL tires which came on 1968 and 1969 Z/28s will not have that DOT + 10 digit number sequence


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