I'm from wisconsin, and my samurai was my daily driver for one winter, it was locked, so i usually kept it out of four wheel drive, cuz four tires spinning is never good, if you can afford a selectable locker for it i would go that rout, for the rear and quick lock the front, that way you can go open rear and just leave one hub unlocked up front, or go open rear and just lock the front, and do the same, they are really fun in the snow, but, they are also really cold, really cold... mine is carbeureted and i havnt had any trouble with it (yet) i wheel quite a bit with it, i think fuel injection was 91, with all that i have done to mine i'm still around 3 grand, and thats including chromoly axle shafts, good luck