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Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413221 Wed Jun 09 2021 01:25 AM
Joined: Jul 2000
Posts: 61
R
'Bolter
Another factor is radial versus bias ply tires.

I've heard that radials rot from the inside out in about seven years, so they should be replaced at least that often regardless of the tred that is left.

Bias tires seem to last forever if you keep them out of the sun.

Case in (extreme) point: The front tires on Lurch are over 80 years old. How can I tell? The size is 30x5, which changed to 5-20 in the mid-1930s. See the pic below and shudder.

For safety (?), Lurch has inner tubes and flaps that are only 4 years old. Also, I only drive at around 20 mph. ;-) I've only had one flat with driving these tires for over 25 years.

Silly? Yes. Stupid? Maybe.

Cheers, Dean

Attached Files
LurchFrontTire-1.jpg (355.49 KB, 253 downloads)
Lurch's right front tire. ;-)

Dean 'Rustoholic' Meltz

Lurch: 1927 1-Ton Chevy Cattle Truck
In the Stovebolt Gallery [stovebolt.com]
Old and ugly is beautiful! -- The Saga [stovebolt.com]
More fun with Lurch [stovebolt.com]

Justin: 1928 Chevrolet AB Canopy Express
In the Stovebolt Gallery [stovebolt.com]
Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413227 Wed Jun 09 2021 01:54 AM
Joined: Feb 2000
Posts: 4,364
J
'Bolter
Price out a new fender, paint and labor, then price out tires. If the tread lets go, the old hard rubber will beat the fenders to death. Thats how I decided when I bought new ones. Mine had 10,000 miles and 18 years old, but still looked new.

Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413275 Wed Jun 09 2021 10:06 AM
Joined: Nov 1995
Posts: 5,160
J
Unrepentant VW Lover
Yeah, personally, I dislike replacing tires with usable tread still on them. But I think I would dislike being dead (or causing someone else to be dead) even more.

I made my decision sortta like Joe's a couple of years ago during a ride to the big show at Winchester when I was going down a hill about 60 MPH and it occurred to me that I had owned the truck for nearly 20 years and was still running the tires that were on it at the time ... If one failed ... going down a hill ... 60 mph ...

I have new tires. And the clock is ticking. My goal is to wear the tread off right about the time they date stamp out. smile


John

"Of all tyrannies a tyranny sincerely exercised for the good of its victims may be the most oppressive."
— C. S. Lewis


'49 Chevrolet 3804

Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413291 Wed Jun 09 2021 12:52 PM
Joined: Sep 2012
Posts: 208
D
'Bolter
In that code how do know what decade?

Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413372 Thu Jun 10 2021 02:00 AM
Joined: Sep 2013
Posts: 1,189
M
'Bolter
The paste and copy below is from the Spoon back in '19. I was lucky when I had a blowout on a Michelin LTX 235/85/16 E rated (10 ply) tire that was at about it's midlife point based on mileage and just turned 6. Not mentioned in the original post was the partner tire that also still looked great didn't go 100 miles on a backhoe trailer (it was well within it rated load range) and it blew out. There were no open recalls.

This Public Service Announce is related to tires. A tire story from two days ago that's still very fresh. I was returning home from a (800 mile each way non stop, sorta) trip to check on a pipeline company project I've been roped into, I was in my '95 Dodge Diesel dually about 200 miles west of Dallas Tx on I-20 and had a blowout on the right front tire. Speed was 70 and even though I had one hand securely on the steering wheel (as opposed to finger tips only) the truck immediately shot 10 feet to the right before I could wrestle it back under control, lots of noise and smoke. Had I been on a no shoulder road or had another vehicle been immediately on the right, it'd have been BAD.

The PSA component here is stay aware of and CHECK your tire age. The tire that blew on the front had about 30,000 miles on it and had just turned 6. The manufacture date was 3-13. Cold pressure was 75 psi and no previous repairs, it was Michelin LTX which should be a great tire.

A lot of jurisdictions require tires to be no older than 5 years old when on the front, I've always felt that was a bit ridiculous since I've regularly ran tires much longer with no catastrophic failures. I've gone though several sets of 235/85/16 E rated BF GoodRich Liberator tires and usually at the 7 year mark they go on hay trailers. It's not uncommon for the tread to separate at about the 10 year mark. However due to the way we pull at low speed on secondary roads it's never been a problem. I've never had em blow.

The above said, it's to the tire shop tomorrow for new steer tires and one very good looking Michelin will be set-aside for trailer duty.


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1951 Farmall Super A



Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413377 Thu Jun 10 2021 02:36 AM
Joined: Jun 2011
Posts: 4,204
E
'Bolter
I have run many bias tires way more than 10 years, the recommended interval here, many tire shops quit at 10 years, however, many Michelin’s have failed after many(more than 10) years.

Ed


'37 GMC T-18 w/ DD 4-53T, RTO-610, 6231 aux., '95 GMC running gear, full disc brakes, power steering, 22.5 wheels and tires.
'47 GMC 1 ton w/ 302, NP-540, 4wd, full width Blazer front axle.
'54 GMC 630 w/ 503 gasser, 5 speed, ex fire truck, shortened WB 4', install 8' bed.
'55 GMC 370 w/270, 420 4 speed, grain, dump bed truck from ND. Works OK.
Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413390 Thu Jun 10 2021 03:44 AM
Joined: Jul 2004
Posts: 3,752
R
'Bolter
I've had my truck for 18 years and the tires were on it when I got it. It was a farm truck so not many miles on the tires and they look like new. I suppose should replace them, but I only put a few miles on it myself in a year. Plus I imagine I'd be stuck replacing the wheels also.


Rich

'47 Loadmaster [stovebolt.com]

1947 Chev. Loadmaster

1959 Chev. Viking 40

Genie: "I am the genie from a magic lamp and I have the power to grant you three wishes."
Me: "I want to be rich."
Genie: "OK, Rich, what's your second wish?"








Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413392 Thu Jun 10 2021 03:57 AM
Joined: Dec 2001
Posts: 15,531
'Bolter
Probably shouldn't admit this but I ran the B.F. Goodrich Radials on my 37 for20 years. My truck does stay in the shop and I did look closely at them every time I washed the truck. Still no cracking ect when I took them off this summer. I took the tires to the recycle place so no one would think they were practically new and run them which would have happened if I left them at the tire place!!!

......needless to say, the day before I ran the little blue pickup well past 100 on I-85 then later that night decided I'd be smart for once in my life and had new ones put on two days later! I realize I got lucky this time!!!


1937 Chevy Pickup [stovebolt.com]

1952 Chevy Panel [stovebolt.com]
52 Chevy Panel [photos.app.goo.gl]

Pictures in my Photobucket [s140.photobucket.com]

1950 Chevy Coupe
https://photos.websearch.com/share/...Nko1cUJCNFFMTVFEUnNRbjFhNTFPc1J4YWV4cmRB



I'd rather walk and carry a Chevy hub cap than ride in a Ferd.
I can explain it to you, but I can't understand it for you smile
Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413679 Sat Jun 12 2021 10:17 PM
Joined: Jun 2008
Posts: 1,548
S
'Bolter
A local truck buddy of mine got tired of several in our group making fun of his old, cracked rear mud tires on his all original 1967 Chevy 3/4 ton truck he bought at an estate sale 12 years ago. He ordered 2 new rear mud-grip tires online and finally found a tire shop that would install them on his split rims. The shop owner told him the old tires were manufactured in 1969. They still had tons of tread and he’d never had a flat or any other problems with them. He said the new tires did ride a little smoother.

I also don’t pour milk down the sink when it reaches the expiration date printed on the jug. I use the smell test. Just sayin’.


Chuck
1950 Chevy 1/2 ton (all original)
1951 Chevy 1/2 ton (future streetrod)
1941 Chevy coupe
1938 Chevy coupe streetrod
Re: How old are my Tires? Are they safe?
Kevin13Shaw #1413750 Sun Jun 13 2021 06:32 PM
Joined: Sep 2013
Posts: 1,189
M
'Bolter
Spotbiltxo said; "I also don’t pour milk down the sink when it reaches the expiration date printed on the jug. I use the smell test. Just sayin’."

Yep, I do the smell test as well. And I was strongly in the camp that tires should be used till used up......Until the incident described above that could easily have resulted in death or serious injury due to a tire failure on two Michelin LTX tires that had just turned 6 yrs. old. As mentioned the first fail was on the front of the dually, the companion failed on a trailer several weeks later. The tires had zero visual clues they were less than perfect.

It can happen. I do believe old school bias ply tires are much less likely to have age related suprises. Radials, I know it can happen.


Good Luck,

RonR


1951 3600 with Clark flatbed, T5, 4.10 rear
1970 340 Duster
1990 5.0 V8 Miata (1990 Mustang Gt Drivetrain)
1951 Farmall Super A



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