tireman62075
nokomis, il
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Joined: 09/18/2009
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With most tires sold today being all season tires, they tend to have a bit more of a aggressive tread pattern, It is of the utmost importance that the tires be rotated on a regular basis. when rotating be sure to switch tires to the opposite side when done. We use to tell customers that the rotation shoud be done @ 8,000 to 10,thousnd miles. The first rotation may need to be done a little sooner (6,000). Thats beacuse the tread is deeper when new and proned to the irregular (heel /toe tread squirm) tread wear. this is not the only reason tires develope irregular tread wear, but it is the most common. Lots of reasons, improper balance, lost wheel weight, anything that allows the tire to not stay in contact with the road. Loose wheel bearings, loose ball joints, worn shocks/struts. There is a whole host of things, but a regular rotation schedule is your best defense. That and a reputable front end shop. Good luck!!!
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Sully2
Cincinnati
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Joined: 01/20/2003
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Good Sam RV Club
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Daboo wrote:i had the front aligned prior to putting on the new tires...the tow bar is level I haven't had the struts checked just figured that 60k miles they shouldn't be worn out..guess I will put new struts on and try that.
Daboo: Before Id spring for new struts...Id have the alignment checked AGAIN. The "wasted" money for alignment checking is nothing compared to the cost of struts...
2000 Country Coach Allure; Cummins ISC 330 HP; 71/2 - 8 MPG regardless
2002 Jeep Liberty
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teeznu
USA
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Joined: 04/27/2004
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Daboo
Qqote
""A "cupped" wear pattern on the tires can be caused by a wheel and tire that are out of balance or by weak shock absorbers or struts. This type of wear occurs because the wheel bounces up and down as it rolls down the highway. The cure here is to have the wheel balanced or replace the worn shocks or struts."
In addition, alignment.
Best 2 U
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stevelv
Living on the island
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Joined: 05/24/2006
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Perhaps someone can explain how alignment can cause cupping?
I had looong conversations with Goodyear when I complained about cupping on my GY MH tires and there was never any mention of an alignment issue - it had everything to do with suspension.
* This post was
edited 11/07/09 12:05am by an administrator/moderator *
RV Park Finder
Ex Fulltimers
Repairing/Restoring 1984 Monaco Regent 36' Gas to restart RVing
DH,DW,Jake and Indie
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topflite51
In The Desert of Nevada
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Joined: 05/13/2004
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Good Sam RV Club
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Are you carrying anything in the rear of the car that is unloading the front end?
 David
Just rolling along enjoying life
w/F53 Southwind towing 87 Samurai looking to golf or fish
Simply Despicable 
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txtode
No. MS
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Joined: 08/26/2009
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I had the same thing happen on Goodyears purchases from Walmart. The goodyears from walmart are not the same tire you would get from a goodyear store. They are built expressly for walmart by goodyear. The associates who work in the tire dept in some stores do not have properly trained people to balance the tires. This can lead to cupping.The last set that I had adjusted at walmart after they were balanced and installed on the truck, I then took them to another tire shop and had them re-balanced. The tech brought me a handful of tire weights when he was finished and said this was not needed to balance the tire. Worked out to about 2+ ounces per tire. When initially put on the tires ran smooth for 8,000 - 10,000 miles I think my problem lay not with the tire, but with the balance.
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