Hey Dave, you drive too fast!
Well, at least I suspect that's part of the problem. Bad shocks (the stock
units really retch) also contribute.
I think most of the cupping is due to tire scrub while you're cornering
hard. But you might also try driving over a piece of paper on a flat
surface and see if you've got a complete contact patch. And try getting
the tires balanced at a different shop.
Finally, the OEM Goodyears are designed for low rolling resistance - period.
This helps get a 0.5 mph on the EPA cycle, I suspect. The Wrangler is not
known for long tread life - 30K would be doing very well (in my book). They
also have very thin, flexible sidewalls, which I think results in a lot
of sidewall flex on cornering - and the cupping you're experiencing.
Pity, since they ride and stick reasonably well.
Jim
"The road to tyranny, we must never forget, begins
with the destruction of the truth."
-- Bill Clinton, 10/15/95, speech at University of Connecticut,
"Fifty Years After Nuremburg: Human Rights & The Rule Of Law"
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