No this applies to some '05s as well as some '06s.
However I just had mine replaced today. The dealer said there was no problem found anywhere and the bolts were tight. He still replaced them with the new kit under warranty just for my peace of mind. I also had them remove the wheels and check the hub nuts and the wheel torque all the way around (they charged me for that but I expected it). Mine is an early 05 #298 and the tranny is number 490 or so. The car has about 3000 miles on it. At least now I won't worry about it. :biggrin
However I just had mine replaced today. The dealer said there was no problem found anywhere and the bolts were tight. He still replaced them with the new kit under warranty just for my peace of mind. I also had them remove the wheels and check the hub nuts and the wheel torque all the way around (they charged me for that but I expected it). Mine is an early 05 #298 and the tranny is number 490 or so. The car has about 3000 miles on it. At least now I won't worry about it. :biggrin