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Unusual tire wear on drive tires

I have tire wear on my drive tire. Every third lug is wearing quicker than the rest. What could be the cause of this?

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Can you post a picture?

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I wish I could. But I don't use my laptop. Only iPhone.

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The wear is in the middle of the tread. Not on edges. Wheel bearings tight

Pressure proper.

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Your exactly right Jackie. The key is to catch it early or not let it happen at all. If caught early many times it stops further wear but many times it will only slow the wear rate.

On my above post I mention the reason this wear takes place. If the wear goes too far before corrected, even at proper pressures a lug that is shorter than the one on either side will have less grip on the pavement allowing it to still squirm on the highway allowing it to continue wearing.

I forgot to mention this on my previous answer. If this wear is only on the inside of the tires, this is a dead giveaway you have a bearing issue.

I recommend everyone check for loose bearings on all wheels using the torquing method regardless of visible tire wear. Reason being most of the trucks on the road old and new are running on loose bearings.

JC

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Most of the time this type wear will be from unequal tire pressures between the two tires in the rolling assembly. Make sure you check your tire pressures at the start of your day when the tires are cold. If you do so after the tire heats up the air temp will be different in the two tires giving a false pressure reading.

Other possible causes are loose bearings, a balance problem, a mis-mounted tire or possibly a bad tire.

This wear condition is caused by instability in the tire. The lug that ends up wearing will do so because it is squirming on the abrasive pavement. Its is the same as taking sand paper and sanding the tire.

JC

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Hey Jackie, I had this issue about a year and a half ago. I have a 2000 International and I had worn bearings on my drive axles and had them replaced and now have no problems. Sometimes if replacement is not needed then all they do is torque the drive axle bearings.

Hope this helps!

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the only thing i have to add is if your buy cheap Chinese tires sometimes it doesn't matter what you do they will just wear wrong

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I have to agree with the low air pressure diagnosis. I remember now a long time ago mine did the same thing. I was actually able to save the tires because I caught it early enough.

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If it is just 1 tire it is probably either low air pressure or a bad tire, if it is two side by side I would look at the rear sus. bushings or rear end alignment,or both.

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In response to the last answer;

Common alignment issues on the rears are thrust angles and off centering of the axles. This will cause feathering of the steer tires and almost never will effect the drive tires.

Wear on the rears can come from many things but alignment is normally not one of them.

Again in response to the previous answer,

Tire pressure wear issues will start in the low tire, but many times that tire will become out of balance and cause the tire beside it to also wear. They are bolted together, when one bounces, both will bounce.

If the whole rolling assembly gets too bad it can even cross over to the inside tire on the opposite side of the truck and then to the outside. Everything is connected at some point.

JC

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