You know, I personally pulled the wheels put in inner and outer frt. bearings and races plus checked the calipers and installed new brake pads. The rotors are ok because the car stops straight and no pull either way. Also to add to this I had a 4 whee lalignment done. I would say tires but after 3 sets?????! I really appreciate your input and I am sure you see my frustration. It is crazy in that there is no indication of any tremor, shimmy or whatever after driving a while. Someone else had a thread on this and thought it may be a steering stablizer. As we all know I replaced that also. I wonder if they found their problem? Again thanks for sharing this with me. I need all the input and help I can get at this point. I've always said there isn't anything mechanical that can't be fixed. We will see. Thanks