Thanks Bluegill, that explains why I have experienced two different modes of operation.It has what's called an open differential. Both wheels will not spin at the same time all the time, but will sometimes. If one front tire has traction and the other doesn't, it will only spin one tire.
Chuck,With 4wd, which front wheel is powered, or are both?
That's right...The differential lock only locks the rear axle. The front axle has its own differential, so you can still see the front wheels running at different speeds in a turn.