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Old 01-11-2017, 08:28 PM
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Ripped sidewall in newer tires

Today I ripped the sidewall in one of my new-ish tires, on my 2011 WK2 Quadratrac 1. I have a new spare tire that is at 13/32nds and the other 3 tires are at 9 - 10 32nds. I know this is a all wheel drive vehicle and I have heard that you SHOULD replace all four tires. How much tolerance do these systems have? will I be okay running this tire for an extended period of time? I have received about 5 different opinions from tire shops and mechanics. Any help is appreciated. thanks.

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Old 01-12-2017, 08:01 AM
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Re: Ripped sidewall in newer tires

Hard to tell what your question really is. If you're asking how different the OD can be, generally it has to be less than a 3% difference. Let us know what info you need, and maybe we can answer. Good luck.
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Old 01-12-2017, 08:10 AM
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Re: Ripped sidewall in newer tires

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Originally Posted by kyoboof View Post
Today I ripped the sidewall in one of my new-ish tires, on my 2011 WK2 Quadratrac 1. I have a new spare tire that is at 13/32nds and the other 3 tires are at 9 - 10 32nds. I know this is a all wheel drive vehicle and I have heard that you SHOULD replace all four tires. How much tolerance do these systems have? will I be okay running this tire for an extended period of time? I have received about 5 different opinions from tire shops and mechanics. Any help is appreciated. thanks.
FWIW, I picked up a bolt in one of my tires about 2 months ago with 10K on them. The tire was unfixable and I wound up replacing all 4 under a buy 3 get one free sale. Even though I probably "could" have replaced just the one, I didn't want to worry which one was which when I rotated and take the chance.
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Old 01-12-2017, 08:43 AM
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My question is. With the difference in wear between the new tire and the slightly worn tires. Will I prematurely wear out the drive train. There is 3/32nds difference between the old tires and new tire
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Old 01-12-2017, 09:43 AM
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Re: Ripped sidewall in newer tires

Subaru says 2/32 while Audi says 4/32. This might help:

http://www.ndtirepartner.com/resourc...er%20sheet.pdf

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Old 01-12-2017, 11:03 AM
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Re: Ripped sidewall in newer tires

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Originally Posted by kyoboof View Post
My question is. With the difference in wear between the new tire and the slightly worn tires. Will I prematurely wear out the drive train. There is 3/32nds difference between the old tires and new tire
That's the 3% I mentioned. I have asked this before, too, because I was curious. When I upsized my tires I also had to get a matching spare. Here is that thread, the general consensus is that there should be no more than a 3% difference in the ODs, outer diameters.

Getting a matching spare for upsized tires: what is Jeep's spec for a 'match'?

HTH! And if you or anyone finds a Jeep document or reference that defines this, please share. To be legit, it would have to come from Jeep, but around here on this forum, Milous's word is pretty solid.
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Old 01-12-2017, 05:52 PM
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Re: Ripped sidewall in newer tires

Thanks guys.

I decided to not replace all four and just go with the one new tire. I talked to the manager at Jeep and he told me that as long as its with in 1/2 inch circumference I will be fine. I measured and its within the recommendations. I moved the slightly bigger tire to the right rear as the right rear always wears the fastest.
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Old 01-13-2017, 07:18 AM
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Re: Ripped sidewall in newer tires

I see that you've already replaced just one tire, but let me throw this out as something to consider.

As well as my GC, I have a 2001 Corvette, which I bought new, back in '01. While not a 4WD, the 'Vette has a limited slip rear axle. When I had about 2500 miles on the car, I ran over some road debris and cut one of the rear tires. While it was still holding air, it wasn't safe to drive on.

Thinking that with so few miles on the tires, it would be OK to just replace the one tire, that's what I did, and initially everything was OK. However, the replacement tire didn't wear at the same rate as the OE tires, and several thousand miles later, the initial difference in OD of the rear tires had increased. One day, as I as pulling into the parking lot where I worked, I smelled hot gear oil.

I lived about 25 miles from where I worked, and what was happening was that the limited slip unit thought that I driven around a corner for 25 miles, and wasn't happy. I wound up replacing all 4 tires, at that point, and it wasn't cheap! Had I replaced both rear tires, I would have been OK, and the rear axle would have been content.
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