How to tell an original Firestone F70x15 - 1970 Corvette

[David S.]

Looking for specifics on how to tell an original F70x15 from a repro. Also how to decode the tire code/date to confirm its correct for my date range.

I know about the 7 treads vs 5. What are the other tell tells? How can I decode the date code?

Thanks,
Dave

[Gary B.]

Re: How to tell an original Firestone F70x15 - 1970 Corvette

Tread pattern should look like this. Usually, Firestone uses a Julian date. 152 would be 15th week of 1972. Last few numbers of the serial number.
Gary B

_DSC0442.jpg

[Bill W.]

Re: How to tell an original Firestone F70x15 - 1970 Corvette

I have the original Firestone white stripe spare from my 70 #2650 . What info do you need?

[Dave S.]

Re: How to tell an original Firestone F70x15 - 1970 Corvette

Looking for specifics on how to tell an original F70x15 from a repro. Also how to decode the tire code/date to confirm its correct for my date range.

I know about the 7 treads vs 5. What are the other tell tells? How can I decode the date code?

Thanks,
Dave

David,
Check the archives on dating and details for your 1970. There has been a lot of discussion on this. All 70's would have the "short" date and only Goodyears can be decoded. Firestone's cannot. The long codes began in early 1971 so they don't apply to a 1970.

[Loren L.]

Re: How to tell an original Firestone F70x15 - 1970 Corvette

Contact DOT.

[Mike E.]

Re: How to tell an original Firestone F70x15 - 1970 Corvette

Have blackwall original from #6243 if I can help.

[Alan S.]

Re: How to tell an original Firestone F70x15 - 1970 Corvette

Hi David,
Here's a difference I noted when looking for original tires.
I'm not sure WHY there's the difference though.
One is the RWL spare from my 71 and the other is of unknown origin.
Different molds? One for production, one for service? One for production, one for tire dealers?
I'd be interested in hearing people's thoughts.
I didn't see the tire, just pictures of it.
Regards,
Alan

Mid-January 71 spare tire.


Unknown origin.

[David S.]

Re: How to tell an original Firestone F70x15 - 1970 Corvette

Thanks guys. Can someone post a picture of an original 70 tire DOT code?

Thanks,
Dave