Tomorrow if time permits, I'll drop each half shaft one at a time and run up. If all else fails put the old diff back in to see if that makes a difference.

The high pitched whine just doesn't relate to a big lump of cast iron filled with (new) oil.

__________________
David


1996 Mercedes S124 E300TD - 129k - rolling restoration project -

1998 Mercedes W210 300TD - 118k (assimilated into above vehicle)