I don't want to contradict anyone on this thread, but the following is what I remember:
1) The stub-axle slips in the rear hub.
2) The rear hub slips into the inner race of the rear wheel bearing, which is a split race.
3) The big nut with 340 fl-lbs of torque, in part, presses the split inner race together to properly load the bearing.
Going Jackie Chan on the stub axle will most likely damage the bearing. One might get lucky using an air chisel, but that entire assembly needs to be pressed in/out using various pullers and contraptions to prevent damage to the bearing.
Please accept my apology if my ramblings amount to nothing but a brain fart.
