sounds like your drive shaft bearing /and bearing support are bad,,, if you want a new one from chi na go to ebay or get the correct one from needswings
To check it, put the car on a lift ,, after clearing a path use a crow or pry bar to lift and move the drive shaft up and side to side at the support you will see if it is ripped it should only move less than 1/2" in any direction. jim