It was definitely both rear wheel bearings. They were original and lasted approx. 155K miles. Not too bad, esp. since they are sealed and no real PM.

Make sure you get the one kit per side which is $10 more. Includes new bolts and the important giant circlip which is almost near impossible to take out with bending it.

All is quiet again.

:-) neil
1988 360TE AMG
1993 500E