I always found it easiest to remove the entire front differential to do these seals. Once it's out, do both sides at the same time, eventually the other will leak anyways. The passenger side is a little more work, I would remove the right axle housing with actuator from the diff. and clean everything on reassembly with the new seal. If you have some jack stands or ramps, some decent hand tools and some mechancial aptitude this can be done at home.
