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rear tire chopping??

 
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Old 18 Jul 2012, 06:39 am
mdskinner731's Avatar
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Default rear tire chopping??

upon inspection of my car last night, i noticed that my passengers rear tire is "chopping".


this is not my tire, but it shows similar wear.

what would cause this? and its only on the right rear not both.
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Old 18 Jul 2012, 08:10 am
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Default Re: rear tire chopping??

if it's one egde, it's usually that is caused by improper camber/caster. if all the bushings look good and nothing wobbles, it's possible you bent something back there offroading

is it like that all the way around the tire? is that the inner or outer edge? if it's both edges, it's likely from turning hard with too little air pressure
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Old 18 Jul 2012, 08:20 am
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Default Re: rear tire chopping??

Bad shock will also cause this. Wheel bearing another suspect. Alignment by it self usually results in a smooth wear pattern. A bounce or wobble is what causes scalping effect! You could have a combination of alignment and one of the other two.
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Old 18 Jul 2012, 11:06 am
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Default Re: rear tire chopping??

Yea its wearing on the outside just as the photo shows (not my tire but similar wear) and i did run it low for a few days...

allignment is another possibility as i never have had one done.

wen i jack the car up every hing seems tight; no tire wobble from bad wheel bearing.
i did notice hat if i place my foot ontop of the tire and push in i hear a slight "thunk" coming from something. i cannot see anything moving but i can hear it.
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Old 18 Jul 2012, 11:13 am
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Default Re: rear tire chopping??

Here's an easy one for you, swap your rear shocks. If the problem follows to the other side, well there you go...
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Old 18 Jul 2012, 02:09 pm
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Default Re: rear tire chopping??

That slight thunk you hear is play in the bearing, my wifes chevy venture van did it ( passenger rear) we didnt know what it was, started humming and then made clunking noise, since it was an AWD as well it would shut the antilock brake system down as well as the AWD system, one day she came home and said its banging. I took the rears off to look at everything and didnt see nothing but found it when re-installing the tires as the rear passenger seemed to not seat, thought I bound a lug on the rim or something, thats when i noticed the wheel bearing was shot. Easy to replace, just torque to the proper specs as too tight or too loose will cause premature failure of the bearing.
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Old 18 Jul 2012, 02:50 pm
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Default Re: rear tire chopping??

Looks like shock skip to me.
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Old 18 Jul 2012, 06:50 pm
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Default Re: rear tire chopping??

The wheel itself may be bent.

Tim
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Old 18 Jul 2012, 10:11 pm
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Default Re: rear tire chopping??

As sonocativo said, it could be the bearing, best get an assistant to determine exactly where sound is coming from while you do the pushin'
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Old 20 Jul 2012, 02:13 pm
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Default Re: rear tire chopping??

If it is the rear bearing, the hubs in the back are pretty easy to change. RockAuto has them as well as other parts places, not too expensive either.
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