Tested it today and the bad vibe is gone! I have I very faint vibration at around 80mph But it is nothing like what it had been. The main thing is, it is smooth as silk at 75-80mph and that is where I set the cruise at, so I am quite happy!

 

Sweet. Thanks for the update. The screw that backed out, messing up with the flange seating, what was that for?

 

That is the same kind of screw that holds your brake rotors in place until you bolt on your wheels. This screw just holds on your parking brake drum until your driveshaft is bolted.