Marcus,
I'm starting to pull out all my tires to check the dates. I have questions on the first two tires I pulled out to decipher......
1. I have a Goodyear Power Cushion 6.95 - 14 with a date code of 0N0S0B3, can a system 2 have 6 or 7 digits as a date ? I believe this code to contain zeros and not the letter O. This tire is mounted on a green painted steel rim that I was told came from an AMC car. I believe that as correct since the back side of the tire has an ink stamp stating AMC Kensha Wisc.
2. Off topic slightly - do you have any info on date codes for Firestone deluxe champions, specifically Z000318C ? Thank you