Hi,
is it really necessary to drop the rear diff in order to open diff cover and to clear clogged breather hose?
I have clogged breather hose, so each time I dip into water mud is sucked into diff and I need to change oil. So I thought I would open rear diff cover, try to unclog breather lines and clean diff interior with brake cleaner.
But my Nissan dealer says rear diff needs to be dropped for the procedure.