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This photo is from a couple of years ago, I rediscovered it while going through some files.
I had just left the house and was rolling down the road at about 40 when I heard this thump, thump, thump. WTF? I pulled over and saw the beginnings of this:
The tire still held air pressure.
I got it home without incident, only being about 1 mile away. I pulled all 4, plus the spare and had a whole new set put on.
There have been news stories lately about tire shops selling old tires. Even seemingly brand new tires from the shop can be over ten years old. Something to watch out for, not just on Corvettes, but all vehicles. I'm not a tire expert, but I think the concensus was that tires should be replaced at 10 years, regardless of mileage. Does that sound about right?
My tires were almost 10years old and were showing bad signs of dry-rot. I got lucky. Don't wait, change 'em! If that happened at 60 MPH the repair would outweigh the cost of a new set of rubbers.
Mine looks exactly like that right now. It just burst sitting in the garage about two weeks ago. The tires have plenty of tread but are very dry rotted and at least 15 years old; probably older. My Vette hasn't been on the road in the last 10 years.
The tires on our Durango were only 5 years old and one of them split all the way around the sidewall. I'm glad I decided to crawl under it to check the fluid in the gear boxes before our vacation. It was on the back side of the tire. Wish I had taken a pic. The tires on my Vette are very old. I'm guessing from sometime in the late 80's since that is the last time the car was registered before I bought it. It's time for some new ones.
...I think now they are saying "no more than 6yrs old" on the age of tires...
That is the same information I have read too. After six years the rubber composition starts to break down rapidly. I had some ten year old BFG Radial T/As that still looked like brand new on the outside. One developed a bubble in the tread. After a little research on this subject I went and had all four replaced.
There are date codes on tires so you can tell if your new tires are "fresh". Unfortunately, there is no law in the USA against selling old stock that has sat on the shelf for years. There are laws against that in Europe however.
I saw your original post and it prompted me to check the dates on the tires of '73 I picked up back in March. Even though the tires looked brand new and had less than 6,000 miles on them, they were nearly 11 years old. My first thought after finding out the date was how lucky I had been during those two or three high speed runs I made showing off the car. As of last Friday the old tires were dumped in favor of some new 17's.
This happened to my tire over 2 years ago, and I didn't even know to look back then. I bought a new set and chalked it up to another unexpected expense of ownership. Now I know to look and pay attention, not just to tread depth, but overall condtion, and age.
I had a tire spare tire mounted on the rear of my camper to blow out . It looked like the one in the picture, it was 9 years old and was not on the ground and was not in the sun.
I just bought a set of tires from Sam's recently and while I was waiting I must have looked at the date codes for 100 tires
they had on the racks (yeah I was bored). The oldest I saw was about 15 months old and the newest 2 months. I hand
picked my 4 tires and had them in the aisle when the guy came from the shop to get them and mine were 4 months old.
I would set a limit at 1 year and that way you could use the tires for 4 years and they would still be within the 5 year max.
After 4 years, I am getting a new set of tires no matter how good they look.
They must have made them better in the old days just took off A set Of Goodyear GTs they were 24 Yrs old off my car ,they were not even dry rotting yet I still have em hanging on the wall the tread is 50%left.
Put on new Goodyear Gt2s and man what a diffrence in the ride.