What he said. depending on the year and make of your axle you may or may not have the small snap ring on the end of the axleshaft. Take out the 6 hex screws, then remove the small snap ring from the end of the axle shaft (if you have it), then use a pick to get the large ring out that seats around the inside of the hub. Once that is out, put the locking hub back on and insert 2 of the hex screws (on opposite ends from eachother)....just screw them in a little and pull them to remove the rest of the hub. Then use the hub socket to remove the outer locknut, then the little ring thing, then the inner locknut. The hub should just come off then. Make sure to put a clean towel or something on the ground under the hub to catch the wheel bearing that will probably fall out.
-Harrison