There's often a good deal of rotational slack in a Land Rover transmission so those values don't sound too outlandish. It's when the bearings are loose and allow lateral movement that it's time to do something. Mine sometimes has a 'clunk' on drive take-up which I find can be quietened down considerably by replacing the drive flanges on the rear hubs. Other parts of the drivetrain contribute, of course, but as that's the last part of the transmission where slack can accumulate it has the most influence.
