I.have a 2001 Oldsmobile silhouette and both my rear tires wear on the outside and are completely bald with in 3 months. I have replaced the wheel bearings because I was told that would fix the problem. My boyfriend keeps telling me I'm over reacting and its a normal wear for a mini van since I have no weight in the back because the spare tire is missing and the tow hitch is gone. When it rains, snows, or is icy my back end slides all over the place and I'm sick of buying tires. He just wants to buy tires put them on and release some of the air out of my air shocks. I just want to fix it and stop wasting money on experiments that aren't working.