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Peterbilt 387..wearing outside shoulder on passenger side steer

I have a 2006 Pete 387. I have been having consistant trouble with the outside shoulder wearing off on the steer tire. The driver side tire is good and gets good mileage out of with only slight inner shoulder wear. This problem starts slow, meaning it doesn't show up till about 25-35,000 miles. Once this mark is hit the wear becomes fast and aggressive. the rest of the tire treat is good and by the time the outer rib is gone the center and inner treat is still over 50%. I have had several alignments and they all come out good with only minor adjustments needed. I have also kept a close eye on tire pressure.

I have checked all the easy and common areas I can think of and am at a loss as to what to do now. Any help anyone can provide me I will greatly appreciate it. Thanks, Nate

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5 Replies

You could switch them from side to side (even xza3's ) after about 30000mi. and see if it stops. or at least get more miles out of them. balance beads might help too.

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Nate, come to Kansas city and I will show you the difference between a conventional alignment set to factory spec and an M D ALIGNMENT set to the spec that actually works. Your drive axles are out of alignment pushing your truck to the right. That is why the wear shows up on the right shoulder of both steers. Most so called alignment techs are trained to run a machine and know little or nothing about what actually makes the truck go straight or how to produce above average tire wear. If you want help and an education as to what is wrong with your truck call me any time. Alignment Solutions Kansas city's MD Alignment shop 913-709-6199 , Chad Hohn.

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Have the same truck but 2005 387. Just got 300,000 miles out of our steers. I believe it's the alignment. We get ours done every 3 months by the same person here in Georgia. But our steers used to wear that way before he did the alignments.

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Have you checked the trailer to make sure it's aligned the trailer will cause this type of tire wear

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Is there a way to find a follow-up to the situation that Nate was having? My truck does the same thing 2007 Peterbilt 379 I could put new Steer tires Michelin on the truck will be no wear whatsoever from the left front steer Tire, no wear from the right front steer Tire for approximately 50000 miles then in the next 23000 miles to the outer rib will wear down and the rest of the tire will be perfectly fine. I've had it aligned at Peterbilt various times. I've had it aligned by MD alignment in Greeley Colorado. The front end is tight, the track bars on the rear differentials have a good bushings and are tight, the fifth wheel and the bushings are new. So I'm not sure if there is a way to find out from Nate if he is found a resolution to his problem

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