Rubbing sound Front passenger side

[gmhowe]

After picking up my 96 Collector Edition, every time I turn left or on the highway any slight left turn can hear a rubbing sound from the Front Passenger side, popped the hood and can see no marks at all. CNV Corvettes here in Tempe, AZ have replaced the Wheel Hub twice and have some other parts on order, but just thought I would check to see what my friends here might know. Another thing is that I can feel vibration in the steering wheel and also at high speeds the tire feels like its bouncing. They have done the alignment and balancing.
Any help would be appreciated since I would like to take if out for a long drive.
G