After 60k I replaced the General Ameritrac's on my 06 SC. I went one size larger, 265's, and installed Continental CrossContacts. I had the tires balanced and the front end aligned and after 4k the tires are showing signs if cupping. I'm in sales and 95% of my driving is at highway speed. The Generals I took off wore perfect the entire time.

Any thought??? Thanks!

 

Sounds like the alignment is off.

 

Too high PSI in the tires...

 

i thought it was the opposite for cupping? to low of psi. harder for the tire to keep its shape at higher speeds...

 

I had the same issue with my old tires and I was told it was due to worn shocks. Got new tires and new shocks and tires are wearing fine after 10000Kms.

 

Dangit you're right!!! Had a brainfart...

 

haha ive been havin a few of those lately too

 

Yep, it could be the shocks.