Goofy tire wear

In my experience, tire cupping had always been shocks. Still though, check everything.

 

I did the chalk test, and didn't see good results, so I was basing 30 psi on results from a bunch of other guys with the same tires, who said the chalk test showed 27-30 to be the best results. They also rode much better at 30 than 38. I'll try 40 for awhile though, and see how they wear.

I've rotated then at every oil change, so 6-7000 miles.

What could cause the shocks to be bad so soon? According to the bounce test, they seen fine. Could something else be wrong with them?

 

I'd say probably 10-15,000 miles on it now. Just under a year of normal driving.

 

Yep tire cupping. Those tires are toast!

 

After some reading, it looks like some of those guys running 25-30psi were on load range D tires, of the same model. Doh! I didn't know they made them in both load ranges. Guess I'll pump then up to 40, check everything else, and get whatever life I can out of them. The cupping doesn't seem to have affected the ride in any way at all.

 

That is called feathering my friend

 

Tires with that kind of tread must be rotated at about every 4000 miles. There's ya problem

 

Well, now I know ¯\_(ツ)_/¯

 

In the business we call that chopped up tires. Many factors cause this, proper inflation, worn suspension components, how fast are you taking those high way off and on ramps, tire brand etc.

 

pretty typical and no real way around it on a tire with all different beefy lug sizes. Happened to every more aggressive tire i have owned to some extent. Some worse than others. All rotated at regular 5k mile intervals.

 

Thanks. I'll rotate them more often, and keep them more inflated. My big concern was something bad in the suspension, which, to the best of my ability, I can't find anything.