I found today that one of the lock/bearing nuts was a little loose so it's been tightened. Everything else looks good. It feels really solid now and when you spin it it sounds great. There's only been about 20 seconds total of squealing since this problem started and I will be keeping an eye on them as I travel, listening and feeling for heat...
I appreciate those who took the time to offer up suggestions and information. The bushings are next.
Note: I found the shaking of the tire or the brake drum to be the most helpful. You can feel when it's not tight enough.
