I would also add that we can use the ATF fluid for our power steering fluid.
So when getting a case - get a bit more to flush the power steering juice.
And-
Probably doesn't affect you, in your temperature zone - but the manual has different viscosities for fluid for front and back diffs. Others should check their local low temp for proper selection.
I did all my fluids myself last year. Pretty painless. Maybe I can do a how to for all if needed....
Some Data sheets:
and another list..
might help some people.