GE gas dryer noise - is this from motor?
No Ted, I believe it is the dryers blower that's creating the sound. The blower pushes the hot air into the dryer. I may be hearing things but to me it sounded as if an article of clothing may be stuck inside the blower and is causing the "fluttering" noise you hear.  Since you are familiar with fixing the dryer bearings, unplug the power cord and then open the dryer case to get to the blower in the back. Look for any obstructions (lint, socks..).