Was visiting my daughter today and my son-in-law noticed some tire wear on the rear passenger side dually set. I am getting some significant cupping on the inside of the outside tire and the outside ...
So basically all this abnormal wear has happened in less than 7,000 miles. Where did the tires that are showing wear start out originally? I'd be looking at the shop that did the alignment and tire dismounting and rotation. Since it sounds like the wear started around that time, they are the ones I'd be talking to about the problem. Sounds like they screwed something up somewhere.