 Brand new FLEX 2010. already replaced two balljoint/shafts on the front passenger wheel. First around 12000 miles, and 2nd on 21000 miles. The car still pulling to the right and not fixed. The Dealership admits the problem exist, they claim it is the tire!?, I am questioning are we expecting to change tires every 12000 miles? The extreme tire wear and the pulling to the right is an indication of an existing problem with the front alignment of this car. However both dealer and the Ford Company seem reluctant to do anything about it.The FLEX in general seems to have a weak (perhaps below truck standards) front structure, it seems that all I read is about wheels, breaks, and noises, however, all in front?