jwirtz,
My 3500 drw with AA-11. 5" rear axle takes about 4 qts and the AA-9. 25" front takes 2 1/3 qts. I haven't changed the transfer case, so I don't know exactly, my guess would be a couple of qts. The NV 5600 trans takes about 4 1/2 qts, so I would suspect that the 4500 wouldn't require any more.
I can't lay my hands on the manual right now so that is all I can tell you. You should also fill out your signature and attach it to your posts so we know whhat truck you have and how it is equiped and would be able to answer your post more precisley.
Fireman