uneven tire wear

Discussion in 'Trucks [ Eighteen Wheelers ]' started by pawco, May 8, 2011.

  1. pawco

    pawco Bobtail Member

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    May 8, 2011
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    I have 2005 international eagle . I have only owned the truck for a month and noticed front tire wear. Its on passenger side and only outside rib. Driver side is good?
    Not sure how many miles on tires.
    Any ideas?
    tks
    pawco
     
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  3. Heavyd

    Heavyd Road Train Member

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    There are numerous possible causes of this. Alignment issue, low tire pressure, excessive positive camber, too much road crown or tire quality. Road crown is the main contributor, but sometimes not the root cause. Every truck in North America will always have a slight pull to the right because of road crown. There are a few alignment factors in the front axle to help counter the road crown by actually causing a slight pull to the left. If everything isn't perfect the truck will always want to pull to the right. In order for the truck to stay straight you have to keep slight pressure on the steering wheel to the left. Out of all 18 tires on a truck, the right front steer gets the most stress. The outer shoulder wears quicker because that is the edge that is kinda like digging in to keep the truck going straight and fight the pull to the right. Once the tire starts to wear the pull to the right gets worse and worse because now the tire is cone shaped and all cones want to roll to the smaller side and the wear gets faster and faster. To correct this, if the tire isn't too bad, you need to swap steers side to side and do a full 3 axle alignment. The tire pressure in the right front steer always needs to be at the rated pressure for that tire. If the tire says 105 psi on the side wall, then it needs to be at 105. This gives the tire the best fighting chance for good wear.
     
    jbatmick Thanks this.
  4. ironpony

    ironpony Road Train Member

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    If your tire pressure is good, I'd be thinking about checking the alignment. My advice would be to use an alignment shop rather than one of the truckstops that offer the service. Rotating the tires is a good plan too in order to maximize the tire life.
     
  5. sandman1976

    sandman1976 Medium Load Member

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    rotate tires every other oil change. i have a question though,can u flip tire over on the rim? or does that mess up the steel belts?
     
  6. ironpony

    ironpony Road Train Member

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    I've heard it both ways...
     
  7. AUSSIE DAVE

    AUSSIE DAVE Road Train Member

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    according to a mate of mine (a truck tyre fitter) flipping the tyres will not cause any issues in a good quality tyre.
     
  8. V8Lenny

    V8Lenny Road Train Member

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    Too much toe in on the pasenger side. Can be axle misalignment also.
     
  9. Heavyd

    Heavyd Road Train Member

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    Just swap the tires side to side, rim and all. Just unbolt them and switch sides. That is the easiest. You don't need a tire guy. Every time you remount a tire you do risk damage to the tire and rim. Also you are creating another chance for the tire to not seat properly and be mis mounted to the rim and cause improper seal leading to air leaks.
     
  10. gunner76

    gunner76 Medium Load Member

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    get your alignment checked. Also, what type of tires are you running? I run Internationals and I've found them to be more sensitive to the quality of steer tire you run. If I run a cheaper tire it will wear uneven like yours is. I started running Michelin XZA3's and have had zero issues since and I usually get between 150-170k miles on a set compared to 80k on a set of cheaper tires. With the A3 michelins you can't swap between sides without dismounting the tire and flipping it because the tires are directional.
     
  11. canuck in da truck

    canuck in da truck Road Train Member

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    not sure how true it is--but i have heard the directional mounting for xza3 is only for when it is new--after time it doesnt matter
    just think--if somebody made a perfect tire--it would be worthy of a nobel prize
     
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