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Hey Bob==Ever since 1982 tires have had a tendency to cup and I really don't know of what causes it. I have heard all kinds of diagnoises but none that I find are true. Some brands of tires are worse about cupping than others. I think the manufacturers changed the rubber compound formula but I can't get any one to admit to that. Rotate the tires every 7ooo miles and make sure they are balanced is all I can say. GoodluckJoe

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โˆ™ 2015-07-15 18:33:10
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Q: Can bad upper and lower ball joints assist or cause premature cupping or irregular tire wear on a Jeep 2002 Wrangler Sport?
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