My cross member nut/flange is missing! I dont know how this thing happend! I was thinking part of my horror experience with my stealership. This cause the clunking sound specially during turning in slow speed in uneven pavement. Hope this will help for others who have same problems.
Leo

 

That's pretty odd. Did you have your car in for service or something prior to the noise?

 

Going in today to check and see if all the bolts are tightened after my header install and now after seeing this, make sure all of bolts are present? If everything is present and tight then my issue seems more than likely to be the hub/bearing.