I had the tires rotated (5000 miles) as usual at same Goodyear facility. Right away I noticed on the highway it pulls slightly to the right. This is the first time since '02. It did it under a lot of weight, and empty, the same amount. I made sure the air pressures were correct several times. I'll take it back to Goodyear but wanted to have some better info before I let them tell me their solutions, or attempt to work on the alignment. What other things could cause slight pull to the right?