Postby slavabon » Sat Feb 04, 2012 2:24 pm
Yep, you have to take care not to mess up the balance of the drive shaft when replacing the u-joints. If done properly, it stays perfectly balanced after the repair, if not, you have to remove the shaft and re-balance it with new weights, etc. I had to deal with the same issue on my 06 back in the day. Minor vibration due to the worn out u-joints became even worse with new u-joints installed and thats with everyhting lined up the way they marked it prior to dissasebly. After a few unsuccesful visits to the dealer to resolve it (they started blaming the tires, brake disks, etc.) I ended up buying a new shaft (it comes balanced) and installed it on my own. The problem went away immediately, but cost me some money..
Good luck with this stuff and keep us posted!