Goodyear Wide Tread GT E70-15 question

**Lynn** · #1 05-01-2005, 06:10 AM

So what does Date code UFO5C23 translate to?

Lynn

**Dusk Blue Z** · #2 05-01-2005, 06:32 AM

Who knew decoding the tires would so complicated?

I do some work in a Goodyear plant and the white numbers on the tread are their part numbers used when assembling the tires. You may be suprised by how many "parts" are used to make a tire. Back in the day all tires were hand assembled. After they were assembled they were cooked in the mold to valcanize the rubber together. Heat will take a tire back apart, that why you see treads of truck tires on the highway.

The date codes were screwed into the mold every day just like the casting numbers on engines.

Mike

**Jonesy** · #3 05-04-2005, 01:55 AM

UFO5C23

U= 1969, F= December, O=Goodyear, 5=Gadsen, C2unknown, 3=unknown

**Lynn** · #4 05-04-2005, 03:59 AM

[ QUOTE ]
UFO5C23

U= 1969, F= December, O=Goodyear, 5=Gadsen, C2unknown, 3=unknown

[/ QUOTE ]

Alec says F = May

Jonesy says F = December

Alec says U = 69

Mark says J = 69

I think the only thing everyone agrees on is that:

O = Gadsen plant.

Surely there is a definitive source on this stuff. Does the Goodyear website offer any help?

Anyone have the judging manual for Camaros? I would assume it they give bonus points for original Nylon cord tires, there is some way to determine originality other than the word "Nylon" on the sidewall. Do any of the reproductions have Nylon on the sidewall?

I am going to check out Goodyear. Will let you know if I find anything.

Lynn

**Lynn** · #5 05-04-2005, 04:19 AM

Nothing on the Goodyear website, but I just sent them a letter. Will let you know what I find out.

Lynn

DarrenX33 · #6 05-04-2005, 04:58 AM

My original spare.

**Lynn** · #7 05-04-2005, 06:52 AM

Darren:

I notice yours has DOT on the sidewall. If you are absolutley certain that this is an original, it dispells the myth that no 69 tires had the DOT embossed on the side.

When was your car built?

Lynn

**AMANOCC** · #8 05-01-2005, 07:13 AM

U=1969 F=march O=goodyear 5=gadsden,AL C2=unknown, 3=unknown
Hope that helps...alec

**Lynn** · #9 05-01-2005, 07:28 AM

Thanks Alec. I guess this really is my original spare. My car is 08A.

BTW, is there a site with the goodyear date codes?

Thanks again. Car guys really are the best.

Lynn

**AMANOCC** · #10 05-01-2005, 08:18 AM

i got this info from a 69 corvette reference book, "1969 Stingray Guidebook" by rick bizzoco....a guy here in town sells them, it was expensive but i felt not knowing this stuff is more costly

no sweat in the info, thats what were here for...each other

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