My 48 Loadmaster has about a half round of play in the drive line. How much is too much?You can rotate the yoke on the rear almost 180 degrees before it engages the axles. It has a two speed. I think the play is in the reduction gearing where the two speed is located. I haven't removed the rear cover to inspect as yet. I don't have any weird noises to indicate a problem. Any ideas?

Thanks,
JMH