tire mfg date?
 

I got a set of NOS G7014 red line tires with this GTO that I'm working on. They are old (USA made), but I'm not sure how old. There is a DOT impression just before the mfg/date code Aug 89? Oct 69? Any assistance would be appreciated.

Good info here. You probably already did this research . Probably 69
https://www.souzastireservice.com/Ti...Aging-of-Tires

https://www.cokertire.com/blog/tire-age

This method started in 2000

What year did the dates start?

So, according to Coker web site - could be the 8th week of 1969. Since they are US made - I don't think they would be '79. '89' 0r '99. Could be wrong though. Anybody else have input?

Could you include a photo the the whole tire?

Looks like this tire was manufactured 8th week of 1979 (thanks Darrell). It can't be 69 because it is a DOT tire. Can't be 89 or later because the manufacturing went off shore in the 80s (this tire says USA mfg). Interesting to note though - the red line on these old tires is quite a bit narrower that then repro red lines - see pictures. Does anyone know if the narrower red stripe is available today?

This is for original, not repros:

Goodyear Polyglas Tire Date Coding

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

stripes on the NOS Polyglas tires measure approx 5/16 wide - repro Polyglas stripe width is approx 7/16 wide. Do the show judges out there pay any attention to stripe width in determining correctness?