Jeff,
It is a fairly easy job. You need an allen wrench to remove the cap. Then you need a small screwdriver to remove the outer lock ring. Then you need a lock ring plier. Remove the lock ring from the axle shaft. Then you pull the body out. Then you need a special bearing nut socket. It has four tangs that fit into the nut. You can get one at any auto parts store Remove the outer locknut and lockwasher. Remove the inner locknut and outer bearing. The rotor/hub assy. will slide off the spindle. Remove the grease seal, replace or grease the existing bearing. Install the grease seal. Grease or replace the outer bearing and install. Now, you install the inner locknut, making sure the little dimple is facing out. Turn the assy while torquing to 50 lb. ft. Then backoff the nut 90 degrees. Install the lockwasher, followed by the outer locknut. The outer locknut gets torqued to 160-205 lb. ft. Then assemble the locking hub. Tim