I marked everything for re-assembly, disconnected the rear u-joint, slid out the yoke and dropped the driveshaft. The u-joints appear to be tight. I have what seems to be play in the rear differential. When I grab the (pinion?) and turn it back and forth there is definately slop or play. Is this normal? By the way, this has been a very simple job so far if anyone is considering it. My tail shaft seal came right out and although it was leaking it looks ok. ?? I also gently shined up my yoke shaft that goes into the t-case. I read where the rough sections can damage the seal. Have I missed anything? I'm picking up my seal tomorrow to put it all back together. Thanks for any input if I have missed something.