Looking for help on death wobble. 2013 Ram 3500 dually 4x4 diesel. Went to small shop and was told I need left and right pitman arms and front rotors. I then went to dealership because I wanted factory parts but they only sell complete assemblies. Long story short dealership said they saw nothing wrong with the steering parts but brake rotors were very bad and thus could have caused the death wobble.??? Ideas please.