In snow they work great. On icy streets, they can be a real ride. I drove several vans with different setups, for my job in Wyoming. Had to do a lot of driving on highway, icy streets, dirt roads, and getting in and out of mines and gravelpits. The lockers and limited slips were great for the snow, muck, and mud. The lockers would also get moving easier on ice, but once you were moving were unpredictable. The open diffs were better on highway, icy streets, and dirt roads. For a wintery climate, if I had the money I would run selectables. If not I would look for good tires and studs. Hope it helps.