Rear end Vibration... Common problems???

[Love_Boat]

Hey guys. I've recently purchased a 1991 LS400... Has 317k km's on it but drives like new....

Except lately there has a been a little vibration around 1500rpm coming from the rear...

Any ideas or common problems with the rear??

Any help will be much appreciated.

Thanks

 

[Spinnetti]

I've got the same thing, but its pretty bad... seems to be at 50mph or so?