My 1977 W123 car has new flex discs (bolts are tight), centre bearing & support, driveshaft alignment bearings, differential support, motor & tranny mounts, recently balanced driveshaft.

I still have vibrations from 40 mph through 60 mph and at 40 the vibration is more pronounced when cornering - more to the left than to the right.

The axle cans have no leaks, but they are the originals (239K miles). I now think they may be the culprit.

Does anyone agree?

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