Counter Balance Gear Play!

were the dots aligned when reassembled ?
 
that was my first guess...bearing
but you said even the threads are moving, made it sound broken in half ????
 
I mean the thread moves slightly like a broken bearing... but the actual gear moves like a mofo... grinds on the case... thats what the vibration was on the 1st start up video
 
IMG_0825.jpg
 
good catch, prolly saved you a ton of loot