if its a solid axle, you are going to need a special tool called a slide-hammer
You will have to open up the differential cover, so you can remove the C-clips on the axles. Its not a difficult task at all, it can just get very hairy. Mainly because when you get the cover off, you have to remove 1 more bolt inside of the housing. The cross shaft bolt, its a pain because it's notorious for breaking. What i did which helped me was to use a little propane torch (advanced auto sells em for 20 bucks) and heated up the carrier
around the bolt.
That is the cross shaft bolt. Shown here...
Once you remove that bolt, you can remove the cross shaft (main pin)...
Once that pin/cross shaft is removed, you can take off the c-clips (they are at the very end of the axle shaft, right there in the midle of the side gears). You will need some needlenose plyers or a couple good screw drivers. But they will come out.
Pull the axle shafts out and you should see the wheel bearing seal and bearing chillin there. Grab a pry-bar and peal the seals out. Once you expose the bearing, i would recommend just trashing the bearing by ripping out the little bearings themselves with a screw driver. Once you have done that you should have the race of the bearing exposed. This is where your slide hammer comes in the play. Put it in there and start smaking away.