Message: Due to the way the front is setup you really cant put a locker there. The front diff is always turning even when not engaged in 4wd. So if you had a locker it would always be locked and you would tear up the front end pretty quick and turning would be difficult on road.
Message: He's right. You can't use a LSD/Locker on the front if you're going to drive on the street. Just put it in 4H and drive around town and you'll see what it's like.
Consider an Air Locker. It's an open differential until you push the button. Then it's a spool.
Message: well, i think detroit locker makes selectable ones, but i dont know if they have them for a 7.25 inch axle. but they are 800 bucks if ya still wanna look into one. Steve
Message: Doesn't Powertrax make lockers for dakotas? I believe they even have a picture of a durango going through snow on their website, so I"m sure they have some options for our trucks...