(highway speeds)Going 60mph on a level road, I get a grumble. Not at accel nor at decel, slack throttle, it happens. It's almost like the noise you get when threading a large nut down a threaded rod, or holding a Timken bearing by the inner race and spinning the cage. The location of the noise is very difficult to pinpoint
New ujoints, front wheel bearings, 103k miles, one piece driveshaft.