2004 GX470 Transmision Buzzing

[S. Gray]

Our much beloved 2004 GX with 200k has developed buzzing noise in the transmission. The noise is most noticeable at startup and goes away as the car warms and at higher revs. The noise occurs in neutral and in gear. The car drives and shifts fine with no slipping or clunking. The transmission fluid was changed out about 20k miles ago.

You can hear the sound go away near the end of the vid.

Video Here:

https://spaces.hightail.com/space/0MEXWl49Z3/

thoughts?

 

[The Oubliette]

I'm having the exact same thing happening.  Any updates on wheat the issue was?  Many thanks in advance for any information.