[Spits] Rear End Noise.... dumb question

[Doug Braun]

If you have a driveshaft problem, such as a bad U-Joint, it will often show
up as
an obvious nasty vibration round 50 MPH.


> With respect to your knock if it is irregular and happens over bumps etc.,
> it could be from anything that moves with or comes in contact with the
> suspension.  If it is regular and occurs at the same frequency as wheel
> rotation it should be in the driveline between the differential and the
> wheel rim.  If it is regular and occurs about 4 times each wheel revolution
> then it is in the driveline from the differential forward to the
> transmission.
>
> ....Spitman....