How bad are the transfer cases for slop behind the nv5600 I after my reman nv5600 I seem to have a decent amount of play in the drive train and I'm not sure if its somn on the trans or transfer case it seems the case  thunks  but I can't tell for sure

I don't think people think about it that much, but I'd say 10-15 degrees is ok, if you're in gear and not binded. But I'm just guessing, if you're not leaking fluid out of tail shaft and don't hear any clunking under load in 4x4 I'd think you'll be ok. 

Well some time when changing gears it will thunk a bit not a big deal was just curious if these transfer cases are known for failure