I had all new Michelin Cross terrains installed (still had plenty of tread left on the Goodyears) and now I notice the SUV drifts to the left. I though it was an alignment problem but I had a shop do a 4 wheel alignment and they said it was well within specs (gave me a digital printout) and took it out for a test drive. Mechanic thought it tended to drift left too. He swapped the front tires and verified air pressure but it didn't resolve the problem. I may swap the rears to see what happens....The shop is pretty competent and honest...used them before...only charged $20 to recover their setup time. Any ideas? I didn't notice this occurring with the Goodyears...99 with 85K miles