Scotty, I have a 2009 Silverado z71 4x4 with over 200,000 miles. I changed both wheel bearings, both outer tie rod ends, both lower ball joints, and the passenger side upper ball joint (control arm) and all were changed at the same time. I then had it aligned and my brand new tires were cupping. I didn’t trust the first alignment shop did it correctly so I took it to another shop and they said it was fine. Both driver and passenger front tires are wearing on the inner and outer edges. The tire pressure is where it should be. Do you have any idea what could be causing this? Thank you, Tony
If your tires are cupping you probably still have loose parts in the front end or bad shocks, though there are other possible causes.
https://www.utires.com/articles/cupped-tires-reasons-repair-prevention-faq/
@ chucktobias Nice article