There was a really good thread put together last week I think,that went over basically the whole nine yards about installing the lowering kits...it might have been David Pozzi that did it...but for some reason I think it was one of the other guys,anyway the general consesus is that you snug but dont torque all of the effected parts during the install...then let the car down with all the weight on it and torque every thing to spec. The problem as I understand it, is that if you dont do it this way you dont get the drop your looking for, I guess you would call it "bolt-bind" for lack of a better word, and there was some other reasons as well.