This is one of the tires off of the back of my '79 Ford. They came with the truck and until now, I haven't seen fit to replace them... Not sure how old it is, but I'd say at least 20 years. Truck did a lot of sitting prior to me owning it- not that I drive it that much... Anyway, I took it to work on the other day to fix the electric choke which wasn't heating up. I found the problem, then went to lunch. Coming back, I made a turn off of a side street through a water puddle that had a bunch of leaves in it and decided to punch it and spin the tires thoroughly (relax- I checked and there wasn't anybody else on the road). Anyway, just as it was getting a good head of steam up BANG! Thwack thwack thwack... Got out and found this: It still held air too. I was thinking about ripping the tread off and limping the last couple miles back to the shop so I could use regular tools and a jack, that wasn't happening. The tire had been complaining for some time now with a pronounced wobble- but I just kept ignoring it. Went to put the spare on- an even older Goodyear H78 and surprisingly it still had air in it! I know I checked it last year but at that tire's age, I didn't expect much. I now have 4 Firestone Destination At's on the way now, that way I don't have to worry If my wife wants or needs to take it out of town.