I've just rebuilt my front axle, and the hubs take grease. There is a seal between the hub and the inner axle which is supposed to stop the gear oil from the diff entering the hub. There are 2 components that need grease, the first is the CV housing, the second is the wheel bearings on the outer section.
hhhmm....IIRC, lockout hubs don't take EITHER....gear lube is spearate from the knuckle area by an inner seal and the wheel-bearing moly grease for the bearings and birfields and trunions is "mostly" separate from the hub area via the spindle.
IIRC, grease on lockouts = too stiff to operate, especially if cold.
*Gulp*...I disagree Woody, I've always put a *light* coat of grease on lockouts. I think where you run into trouble with them freezing is when you have bad gaskets that let moisture in, or you put too much grease in, in a super cold climate and it gets real stiff...Just my devalued Missouri .02