just be sure if you're going to take stuff apart and reinstall it you need to make marks where pieces disconnect so they can go back in the same way. this is especially important when it comes to balance (big deal when you do a rwd drive shaft). a bottle of white out should do the trick, or a silver-colored sharpy might help too
I remember changing out some of the donuts (this is what was used before CV joints were invented) on my Alfetta and not getting the propshaft back where it was. Not that the car was that smooth to begin with, but after it was NVH all day every day.