Tire wear question

So, 2014 Tundra 4wd. Running ADS 2.5s with MCM upper control arms. Everything is aligned perfectly per the alignment thread. 315/70/17 bfg k02 c load rating on rock warrior wheels.

My front tires wear on the insides and I get cupping. It’s not the alignment and not suspension issues. Had this issue with my last three tundras.

Insights?

 

How often do you rotate the tires and what pressure do you keep them at?

 

I run like 37-40 psi and rotate every time I change the oil.

 

pressure for that size on a tundra should be around 35psi. You should be rotating tires every 5k for best wear.

Inside or outside wear can happen in front with lots of turns (or other issues) but cupping is a problem so something is amiss. I have had cupping issues on trucks/Suvs before when the suspension was too soft- either worn shocks or shocks valved super light. Then of course there are weak springs or bad alignment, worn steering or suspension components.

 

I had similar problems with my previous set of tires but I didn’t rotate them enough or get the alignment done often enough. I run higher pressure in the current set of tires and am due for an alignment soon. The current tires seem to be doing better than the previous set.

 

Like I said not the suspension or alignment. Nothing is worn. And this has happened on multiple tundras. It’s always the front that eats up the tires. I just assumed heavy truck and I drive quickly causing the wear.

maybe I should try a different tire than the k02.