Tire wear.

[justbinfishin]

So, I put brand new cooper discoverer stt's on my truck 4000 miles ago. I have rotated them once at 2k, fixing to do it again. I had the truck aligned at the same time. I see an ever-so-slight amount of negative camber wear on the front tires. It's even on passenger and driver sides, and my alignment is good (had it re checked, no toe-out). Is this due to the tiny bit of slack in the grease-able bearings? They take so little torque I just can't imagine that they don't just a hair. If it's an inherent issue with the bearings I may start rotating every 1500 to round it out more.

Thanks!

 

[Sasquatch_Ryda]

Got the specs handy for this alignment that is good?

 

[justbinfishin]

No I don't, will have to find that. My understanding was you're either "in" or "out" of spec.

 

[chrwilkins30]

You should go and get the print out. I have seen Firestone to be specific tell people in front of me that they aligned there vehicle and seeing the sheet it clearly wasn't. You kinda have to know what your looking at to be 100% sure.

 

[87rangerxlt]

My mom is got those same tires. Whole front end was rebuilt and aliened twice. and those tires just keep grinding off. been rotated many times and they are ground right off. I think they got 20,000 miles on them and as soon as we get enough money, they are being replaced! the bfg rugged trail tires on dads explore are still going great at 35,000 ++++ miles. so maybe its just the tires?

 

[Rodney Colvin]

It doesn't seem right, somethings wrong for sure. My brother had Mitchelin LTX M/S2's for over 100,000 miles on his 4x4 ranger. And I've had cheapo tires on my truck for 30,000 miles. There now M/S2's now also, no wear.

 

[brokemechanic3000]

The place doing the alignment is not doing it right they should be checking the SAI and IA to check for bent parts. It sounds like they are just setting the toe and not checking camber or caster. Also Cooper STT tires don't wear for s**t.