I need to hear from those of you who have actually had final drive failures. What are the sights, sounds, and sensations associated with a final drive failure. I have an 03 with 38,000 miles and I have started to notice a vibration I feel fairly certain to be coming through the drive line. Have inspected tire and rotated the rear wheel on center stand and do not detect anything yet. The vibration is of low frequency and repeating but not one you would associate with a deformity or ply separation in the tire. Planning a long trip the first of March and would like the issue resolved prior to the trip.