ok do this take off very easy somewhere around 30 to 50 mph u will get a rumble or shaking slow down it stops... now stop the car take off hard almost like u want to spin the rear wheels,,u will here the rumbling knocking LOUD ,,,,and shaking , now take it home remove the drive shaft ,,,oh first go to needswings.com order a new bearing with support housing, he has the correct one for the crossfire,,
now read everything u can on driveshaft (as it is a two peice and has alinement bumps on each half. while driveshaft is out check the U-joint yes we have a u-joint on the drive shaft post what u find ,