If I remember correctlly, you have the D35 axle right? and it has C-clips right?
If it's a C-clip axle, you'll need a slide hammer to remove the bearing from the axel housing,
To remove the diff cover, remove all the bolts except the top one, then tap the cover, it should break loose and all the fullid should drain out without going all over the place, don't forget the oil pan to catch the fluid. Make sure you have a few cans of break clean and start spraying down the insides.
You will need a 12 point 1/4" wrench to remove the bolt/pin that hlds the centre pin in place.
Push the shafts inwards to remove the C-clip, they shuld just fall out but you may need a pair of longnose pliers to help.
Pull out the axle shaft, Remove the bearing and seal with a slide hammer
Pack the new bearing with grease and tap into place
Install the new seal
Install the axle shaft
If you don't have C-clips then I just did a bunch of typing for nothing!
and X2 on whatever Bob says!