No feathers ruffled. We are just throwing stuff around. LIKE HANDS! Just kidding.
On my truck, it appears that the kingpin bearings reside in a separate location in the knuckle (top and bottom). Those would obviously be packed separately as the the grease applied into the fitting on the "ball" would not get to those bearings. Nor, of course, would the grease get to the hub's bearings as they are on their own too, obviously again.
I was under the impression that the cornhead grease would be used in places where you would want a heavy gear oil when agitated and warm, but then gelling somewhat when cold. Maybe good for a somewhat leaky old gearbox or differential. No?
Did you check out the "interior" pics?
