I'm servicing my swingarm bearings, and when I took it apart one of the thrust bushings was loose in the swingarm and fell out. It has like .001 clearance. The other side is an interference fit and doesn't just fall out. It's in tight. The loose side is on the chain side. Do I have a problem here? The manual just says "remove thrust bushing" when it talks about replacing the pivot bearings. Is it supposed to be tight or loose. I'm guessing tight. Is the swingarm shot, or should I just do something so the loose bushing is tight in the swingarm?