Thanks for the replies guys. Well, I think I'll give proper orientation of the flex discs a try and see if I get lucky. I've done a lot of searching on the subject and found notes on proper orientation of the flex discs, replacing the bearing, etc.

As far as the original mechanic, I'm really hesitant about taking it back and feel I may be ahead by just doing the work myself. Honestly, I've had such bad luck with auto mechanics, this one is just added to the list. I guess if the flex disc change doesn't resolve it I'll see what the cost of a balance job runs. If overwhelming, salvage may be my only route.

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Sam

84 300SD 350K+ miles ( Blue Belle )