The axle nut doesn't have a torque value, you just back the nut over the retaining ring til it just barely covers the ring. Big margin of error. Whenever I have axles off, I always try to have the bearing carrier "over-stuffed" with grease before I seal it up....kinda a pain, but if you don't, the entrapped air can be forced into the bearings when you grease them, displacing the grease, and possibly toasting your bearings. Like Kickbutt suggested, I also grease til it bypasses the axle seals.