Re:
I had a set on my old 3/4 ton I used to have. Had about 25k miles on the tires and they still looked great. Sold the truck to a buddy of mine that works for Snap On. He used it to pull a loaded enclosed snap on trailer and as a daily driver. He put about 10k miles on them no problem, then one day a knot came up on the sidewall, he paid it no attention, kept driving and hauling, and it blew out one day.
I'd say on a half ton or even 3/4 ton that doesn't pull often, they'd be alright. But I agree on the belt breaking if being used like a 10 ply tire on a 3/4 ton is intended to be used.
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