Help diagnosing noises in 4WD

[Koofys]

As the title says, this occurs in 4H. I also have a little bit of a “rattle” sound in 2wd that seemed to happen at the same time. Here’s a video of what I’m hearing in 4H.
I have changed the Tcase fluid. Did the diff fluid and diff seals prior to this noise.

1997 tj, 4.0 auto.

 

[IOwnCalculus]

That sounds an awful lot like the noises my case made, but in my situation the root cause was obvious once I drained the transfer case fluid.

Videos:

What came out:

Replacing every bearing in it because the PO of the case used way, way too much RTV when they put in the SYE.