Yesterday I installed the rear wheel on an xj650 maxim that I am building. There was play in the wheel That got less as I tightened the nut. I tightened it until there was no play, but there was rubbing and resistance. I backed off a couple of notches so that there was minimal rubbing but no play. The question is, how much play is ok and when should the drive years be swapped out ? On 37 year old bikes, are there Any drive years out there that don't have slop ?