For snow areas only. Alabama boys need not apply. Do you install your own winter tires? It's a task I don't mind. I use a floor jack, jack stand, wheel blocks, corded electric impact wrench and torque wrench. When I have the wheel off, I grease any suspension fittings (that have zerks) near the hub, inspect the brake pads, and CV boots, and give the frame a shot of Krown rust preventer. I then check and adjust the air pressure. I prefer it over a shop because their employees typically go ape with the impact wrench when tightening down the nuts. Just don't get a hernia when dealing with trucks tires.