Go to Jeep and buy a bearings, seals, and collar. The bearing is held in place on the axle by a keeper collar. This must be cut off to get the old bearing and seal off. Use a wizz wheel to cut it and then whack it with a chisle
To get the axle out. Remove rear diff cover, and wheel and start taking apart. It's not a terrible job, but if you aren't very mechanically inclined, take it to a shop. Make sure you use the correct fluid in the differential.
Do you have bolt in axels? or are they held in with C- clips? If its bolt in axels you need to remove the bolts, and you may need an axel puller to get them out. If its got C- clips rear cover on rearend has to come off, and pin has to be removed to get C- clip out to get axel out.
take off rear hub u have a inner and outter bearing ..change bearing dont forget to pack new bearing well with a GAA Bearing Grease...and install wheel and tighten middle nut till wheel is tight...then back it off enough that wheel turn but not too freely about half a turn back....GL
There are 4 bolts for each rear axle. They are located behind the rear brake drums. Remove e-brake cable from rear drum and take off brake line.(carefully). I recomend draining and changing your rear differential fluid too, because if the fluid by run out of axle housing. also you should replace the seals for the axles of if you are changing the bearings. When you are done don't forget to bleed your brakes, and hooking up e-brake cable. I hope this answers your question.