Ok, so we purchased a certified used 2012 Journey AWD a little over a year ago. We recently went to check the brakes and we discovered that the rear tires are wearing badly from what appears to be a bowed chamber link assembly. Can anyone here confirm whether or not it is supposed to appear bowed or is it supposed to be straight? We cannot get a straight answer from any of the mechanics we've seen and spoke to. It seems like it should be straight from the diagrams we have looked at, but once again we cannot tell for sure. In the following parts diagram, it is part number 19 that is in question. Thanks!