Something rolling around in drive shaft?

[ServerGuy]

After a bit of diagnosis I've come up with the following noise seeming to come from the rear of the rear driveshaft (see video below)

Any ideas?

https://youtu.be/XyhHzjnZREs

 

[adsm08]

Remove drive shaft and shake vigorously. That will tell you the noise is there.

If that is it, get a new shaft.

 

[Captain Ledd]

^ yup

Might also be something in your brake drum. I had one come apart and all the springs and little brackets where rolling around in it. Does seem to be somewhat in tune with the D/S though, but unfortunately removal of some parts is the next step.