Rotate them.

I had the exact same wear on my Sahara with the exact same tires. My front left seemed to cup sooner than the rest and I don't know why. I started rotating them every 3-4K miles and no more cupping problems.

 

An alignment wouldn't cause it to cup as said in previous posts. An alignment would go from worn to not worn.

 

I had cupping on my MTs and it turned out to be bad ball joints the camber was way off. .

I now have new Silent Armors on and rotate every 3K instead of 6.

 

Don't believe I've got bad balljoints since the inspection station checks them during inspection, which I had done in feb.

 

Make sure they fully check them. Most wiggle the tire around while its in the air. Mine did not show they were bad that way either.

The better way to check is to jack the front wheels up one at a time and put a pry bar under the tire and put pressure on it. Have someone do this while you watch and listen to the ball joints for play.

 

my front left seems worse as well

 

That's how the guy did it. 1 wheel at a time with a big ass pry bar.

 

my front camber -0.8* L -0.7*R WTF bad shocks or ball joints

 

One of mine is -0.6 so it does not sound like yours are that far out of spec. Maybe the -0.8. Check your ball joints.

 

so people that have had their tires cupped from not rotating enough and then rotated to back, how long did it take to even them out and the noise go away? Mine are pretty bad, I havent rotated in about 18K not place to do it here at apartment and I hate bringing jeep to shop lol. I may just get 2 new tires