Well it finally snowed and we had a chance to try out the Explorer in the snow. We went to Denver and on the way home we drove on snowy roads. The traffic was only going about 30 to 40 so I could play a little.
When you goose the throttle it would start to slide to the ditch, but not all the time. Sometimes you could just see the speedometer go up and we just kept going straight.
The one thing nice about a locker is some places would have snow on one side of the road but not the other and people in front of us were spinning the one tire were we had no trouble.
On the roads with snowpack on them you do have to watch the corners, but for me I like the feel of the back end coming around a little. At least I KNOW if you give it gas on the corner (IN TOWN) in the snow it will slide.
As for the wet roads going into Denver I didn't notice any difference.
I guess the best thing to do is remember you have a locker and drive accordingly.
So far I think it was worth putting in, but I haven't had a chance to four wheel with it yet. The playing we have done on the hill doesn't really count since most of the time I get myself into places I don't think I would do four wheeling, such as twisted up and the front tire comes off the ground and the back end can't push it on thru.
Hope this will help others that are thinking of adding a locker.