Ok, I'm a girl with know knowledge of AWD and 4x4. I don't know what a differential is, or master, or anything like that so I need Lamen's terms. I am looking at getting a Jeep Grand Cherokee AWD and am not sure if this is good for Alaska. My husband and I are in the Coast Guard and are transfering there this coming summer. Everyone says we need 4WD for the winters. Is AWD good for this too? Just snow, no off-roading. Any input?