When I rebuilt the front end of my 6.9 I found that the right hand front hub had had water ingress in it so I decided I wanted to check all other bearings in case the car had sat in water.
This meant that I wanted to strip all the rear bearings (and there are five in each side of a torque control rear hub) as well as replace the actual hub bearings as a matter of course. None of them were giving trouble but the kits are not expensive and it was too good an opportunity not to complete the...