Camber out of whack?

Cupton · September 29, 2020

I’m guessing this would be a camber issue. I just had my tires rotated just as I always do every 5k miles and now noticed some inside wear on the rears. The rears were in front the past 5k miles. Is this a camber issue? The rest of the tires look OK. I’m thinking it’s time to have the alignment checked.

Gregory Krisa · September 29, 2020

I'm no tire expert but seems likely could also be underinflated a little or just alot of right or left hand turns.

So being psi check is the quick and easyest start there then if your with in 5 psi of rating in colder morning temps then check alignment.

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Cupton · September 29, 2020

Thanks, I thought of that too. I pretty religiously check them weekly and they are consistently about 35-36psi when cold.

CamGTP · September 29, 2020

Some tires just like to chop on the inside even with a good alignment. They normally run a touch negative camber anyway for handling. Those kinda look like cooper tires and I've seen them do that many times before.

Cupton · September 29, 2020

31 minutes ago, CamGTP said:

Some tires just like to chop on the inside even with a good alignment. They normally run a touch negative camber anyway for handling. Those kinda look like cooper tires and I've seen them do that many times before.

They are the Cooper Discoverer AT3 4S. Good eye! I assumed there would be a little smoothing at the edges of the tread since it’s a pretty squared tire and not really rounded at the edges of the tread. If that makes any sense. Not sure of the correct tire terminology. I’m just a bit surprised at how much it’s worn down if that is in fact what’s going on here.

Mike GMC · September 29, 2020

That appears to be the inside edge. If so, a problem withe the toe setting can also cause this. Get an alignment, at worst they tell you it's good and then you'll know for sure. At best, it's off a bit and they get you straightened out.

Cupton · September 29, 2020

3 minutes ago, Mike GMC said:

That appears to be the inside edge. If so, a problem withe the toe setting can also cause this. Get an alignment, at worst they tell you it's good and then you'll know for sure. At best, it's off a bit and they get you straightened out.

Kind of my thinking too. Go get it checked out and if it’s all good then we’ll know it’s the coopers. Like going to the doctor to get a checkup when something doesn’t feel right.

Cupton · September 30, 2020

Alignment was off.

CamGTP · September 30, 2020

Just barely, really not enough to cause excessive tire wear over the life of most tires.

It'll be a little less wear now with less camber.

Cupton · September 30, 2020

As long as it slows the rate of the tire wear. Wasn’t really looking forward to replacing tires at the moment with only 17k miles on them.

BlancoSilverado · September 30, 2020

If possible send a pic of the entire tread.

I am running -.5° of front camber (last time I checked).

Cupton · October 1, 2020

If possible send a pic of the entire tread.

I am running -.5° of front camber (last time I checked).

Here you go. Not sure if this is what you are looking to see or not. It’s dark out so I had to use a light. Looks as if it’s just the outer edge of the inner lugs that are thinning out. More so on this one particular tire. I’m thinking it’ll be OK for at least a little while. Now that I’m aligned I’ll just keep doing my usual 5k mile rotations when I get my oil changed, keep an eye on it and I’ll buy new tires when it’s time. Whenever that may be. May be sooner rather than later!

This photo really shows how the edge of the lugs wore down.

flyingfool · October 2, 2020

wow

isnt that a part of the design, improoved traction in the sand and snow? lol kinda like a paddle tire

Edited October 2, 2020 by flyingfool

Miguel Olea · October 21, 2020

I bought those same tires for my 06 Yukon 4x4 and they are the best SUV/Truck tires I've owned. I'm going to buy a set for my 2018 Sierra. On my yukon I have roughly 40K on them and they still look brand new. They work great off road and the truck handles the turns great on dry pavement. Cooper Discoverer AT3

royalkangaroo · October 22, 2020

Unfortunately, I had a similar issue with my last set of tires. I had the alignment checked and everything seemed to be in spec. They started out with a slight interior chop and eventually just got worse (and noisier), despite frequent rotation.

I was told some ties are prone to uneven wear. I was also told that more aggressive tires should be rotated every 3,000 miles.

Initial:

Later stages:

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