I think Dynatrac is more likely to do the hubs. Seems like I recently read an article where they did some hubs for the Ford that replaced the sealed units w/ some that could be re-built, regular spindle-bearings-locking knobs etc. I think there would be a significant market for this as it would pay for itself easily w/ gas mileage increase and reduced maintenance. Not to mention it would eliminate vibration concerns for the most part. The thought of the front drive train spinning all the time is really bothersome to me. Manual Locking hubs are really the way to go.
I've been planning on calling Dynatrac, but just haven't gotten around to it yet. Maybe tommorrowwwww....
RandyN