Just a quick checklist.
5 sheet metal screws holding the metal shift boot ring, In ADDITION to the 2 at the carpet tabs. Total of 7 screws to remove.
Plan on cutting your carpet. I had to to get my shifter boot off.
Plan on cutting your fingers! Nissan has all but sharpened the metal ring.
Also there are 2 snap rings to choose from. I saw the big one first so that is the one I pulled. As such I did not need a funnel.
Amsoil sells 75W-90 GL-4 manual transmission/transaxle oil. Also, it is full synthetic and about the same price as the Redline. Might actually be easier to get as they have distrubutors all over the states.
Took me about 2 hours with a warm trans.