I have a 2001 Audi A6 - 4.2L with a vibration I noticed that my rear tires
wear very strange. There is a flat spot every 8 inches or so, all around
the tire on both rear tires. I am told I need a rear alignment, which is
fine, but don't understand how that is going to correct my problem. Why is
it wearing in the exact same spots. Any ideas??