My old man had to go in to get the pinion seal replaced at 50k, and had them do all new fluids while it was there. Less and less is getting user serviceable. New 8L trans are sealed. Unless you know good mechanics or are one yourself, you're in trouble when you need new fluids. Not even a dipstick
Pretty soon the only user service option will be filling the fuel.
Pretty soon the only user service option will be filling the fuel.