NASCAR Racing: Documentation for tires, goodyear tire, michigan race

Question
Hello I bought a Stewart and Jr. tire from the last Michigan race I was wondering if you knew the website to get the certificate of authentication for them. It would be greatly appreciated.. Thanks

Answer
Hi Mike,

To be honest, i do not know about the tire documentation except to advise that you search on the goodyear tire co site and perhaps find something there.  In this link, http://www.pneu-logic.co.uk/aidohomedir/newsite/if3/5-4.html there are some tire ID companies you can contact.

Sorry i couldn't of been of more help!
Coy Jordan