Vintage biased tire decodes - Team Camaro Tech
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post #1 of 3 (permalink) Old May 3rd, 09, 06:37 PM Thread Starter
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Joel
 
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Vintage biased tire decodes

I pulled out of couple of old F70-15 tires from storage to sell. Can anyone decode the dates?. The Goodyear Polyglas RWL had these letters/numbers on it: DOT MDUZ Y4A096 and also 231507-1. The Firestone RWL Wide Oval had DOT VHU4 Y41146 and 6BU. Thanks for your help...

Joel G
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post #2 of 3 (permalink) Old May 14th, 09, 11:04 PM
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Re: Vintage biased tire decodes

WOW!! It's been a while since I had to decode something like that. Probably the summer of 1990 when I first started working in my prior career in the tire & auto service industry.

The MD code on the Goodyear would mean Alabama made.
The Firestone is easy that one is Memphis, TN.

Beginning 01/01/1973 all cars were required to have the tire size affixed to the door or body with a placard (sticker)

The Goodyear Polyglas tires were introduced in 1967 and replaced with radial tires in 1975 if my memory regarding tire history serves me correctly. I used to work for Goodyear at one time. Usually the last 3 digits tell the week & the year. The Goodyear Tire could have been possibly made the 7th week of 1971. I know it was made in Alabama though.

I think the Firestone Wide Oval production ran from 1967 - late 1973. The Firestone stumps me. DOT codes were mandated in 1968 to assist with product recalls and until 1999 the last 3 digits told you the week & year it was made. In 2000 things went to a 4 digit system. I haven't sold any tires in 11 years so it's been a while. I was going to guess 14th week of 1976 for the Firestone, but I'm not old enough to recall what was OEM on what until about 1982 or 1983. Many of the tires I replaced in 1990 were from 1982, 1983 & 1984 Camaro's, Firebird's & Corvettes and yes I know there was no Corvette produced in 1983.

So yea I'll guess 7th week of 1971 on the Goodyear and 14th week of 1976 on the Firestone. Many manufactures continue to produce tires for 3, 5 and in some cases 10 years after a tire was no longer offered as original equipment. The Goodyear VR50 & ZR50 "Gatorback" on the 5.7L IROC-Z's is a perfect example of a tire's production run continuing long after the vehicle model changed or the OE tire selected by the manufacturer has changed.

I hope this info at least helps you out.

SSG&H

1) 1969 Camaro RS 396 TH 400, 12 bolt 3:73 sold 1994
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2) 1984 Z28, 5.0 H.O. T-Tops, G92 3:73, sold 1994
3) 1988 5.7L IROC-Z, sold 1994
4) 1969 Camaro bought 2006, back on the road in 2010
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post #3 of 3 (permalink) Old May 15th, 09, 11:38 AM
 
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Re: Vintage biased tire decodes

Goon's,

You know what the link is that decode's the tire manufacturer?

I had it once and dumped it.

I'm talking the site that decode's the little metal tag-like imprint in the sidewall world wide.

I ask b/c of all the tires that are "re-branded" as local sell generic's instead of sold under the name of the company that made them.

pdq67



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