I bought my 07 DC nearly new. It must have been a repo, only 4400 miles. The previous owner installed a 2.5 " leveling kit. It has always looked as though it had way too much pos. camber. I've had the front end checked three times since I bought it, once at Toyota and two other times at tire shops. It now has just over 92000 miles and I'm 20000 miles into my third set of Michelins. I drive 60 miles a day, all hi-way to and from work. Anyone have any suggestions as to what is wrong and how to fix or is it normal for Tundras to go through a set of tires every 35000? When I say go through a set I mean running them until thay won't pass inspection!