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post #1 of (permalink) Old 09-04-2000, 01:05 PM
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weird tire wear pattern

i just bought this jeep with 14000 miles on it and the front tires are worn unevenly these are factory goodyear wrangler 30x15 tires and the lugs alternate high low high low all the way around every other one is high then low and noisy as hell sounds like mud tires since i just bought it i dont know what the previous owner did to make them do this, does anyone have a clue what will do this? tires balanced incorrectly? the back tires are fine. thanks

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post #2 of (permalink) Old 09-04-2000, 04:44 PM
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Re: weird tire wear pattern

I have heard about similar problems on many tires. Usually it is solved by a simple rotation. BFG even mentions this wear pattern in their literature about their Mud Terrains.


post #3 of (permalink) Old 09-04-2000, 04:56 PM
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Re: weird tire wear pattern

thanks ED i will plan on trying that first.

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post #4 of (permalink) Old 09-05-2000, 10:41 AM
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Re: weird tire wear pattern

<font color=purple>It's called "cupping". In addition to frequent rotation & alignment, the main thing you need to do to prevent this is replace any & all worn suspension components - starting with your shocks.</font color=purple>


post #5 of (permalink) Old 09-05-2000, 11:40 AM
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Re: weird tire wear pattern

Tex.....the cupping that you refer to is usually either shocks or balljoints, as you say. It ends up looking like a serated edge on a pizza cutter. The tire just "po-gos" without the dampening of the shock .....or rattles with the shot ball joint.......but with only 14000 miles neither should be wornout. He's probably looking at the somewhat normal feather-edging from too much toe (either in or out) and not rotating them often enough. My TJ was toed out from the factory. I just thought that the over sensitive steering was because of the short wheel base......I had to constantly correct at highway speeds. At about 15k I started hearing a "warble" out of the front end. I even drove a dealer tech around with the noise. When I dropped it off they could not duplicate the sound. Then I noticed that it didn't happen when I started out first thing .....but was there when I coasted to a stop after a few miles. Apparently the tires would heat up after a while and start "worbbling". Tire rotation and having the toe set correctly did the trick.


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post #6 of (permalink) Old 09-05-2000, 12:45 PM
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Re: weird tire wear pattern

We rotated the TJ's tires every 30,000 miles, no odd wear patterns, so I'm willing to bet it's an external force problem. Normally it's associated with an alignment, and this can be the case on the new jeep. The vehicles that are shipped by rail have common problems, it comes from the constant bouncing back and forth on the rail cars. Ours was truck shipped, but we had a Suzuki Sidekick that had been shipped by rail. We also had to replace the front rotors (it warps them) and get it aligned at 12,000 miles. This cured the problem. Does it track straight?

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post #7 of (permalink) Old 09-05-2000, 02:07 PM
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Re: weird tire wear pattern

<font color=purple>Gee, didn't catch the 14k reference. Teach me to post early in the morning [img]/wwwthreads_images/icons/blush.gif[/img].</font color=purple>


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