centre diff

I have the front prop off, and at the output flange on the centre diff( or is that the trans box ??, ) anyway I have two areas of play,on the output flange, 1 just a little movement like you may find on spline wear but its not cos the nuts turning, and 2 beyond that I get from the 12 to the 2 position free play with the obvious noise from the internals, is this excessive ??
Now I am thinking bearing wear also as I get a bit of a drone that goes away on over run, but the reason this startred was a knackered front U/J that I thought was causing vibration but replacing the joint did nowt for the vibes so I am now exploring alternatives,
the front diff has very little free movment on its drive flange so I am not concernred about that, one other thing does the sliding joint on the fronshaft go to the diff or box, it may well be it only goes on the one way but I am not with the car right now so if anyone knows that would be great.
Dev

I spoke to a landrover specialist and the ammount of play on the output flange is normal, and the vibration may well be the ouput flange/shaft bearing,although he did say try it with the front prop on and in diff lock if the vibrations is not present then odds are its just the bearing
Devlin