This thread sounds like a CVJ advertisement but I have had the same luck. My one axle was shot when I bought the car. I got rebuilds from CVJ and swapped them out myself and switched the diff. oil to synthetic. I replaced the one time use washers and had to grind down one of the axle spacers to get the new axle to fit. I also replaced the circlips that hold the axles in the differential.

IMHO it is worth the extra $80 to have peace of mind and to know that you won't have to get back under the car. I have about 30K on my axles and they are still silent.

__________________
Doug

1987 300TD x 3
2005 E320CDI