The biggest thing that will help you get through the sand will be airing down the tires, not some fancy 4wd setting. Drop tire pressure down into the teens if you are gonna be spending some time on the sand, and drive with your head.
1992 Cherokee Laredo - all stock, DD. Needs some minor rust repair, then on to the mods!
1996 Cherokee Classic - 3.5" lift / 31.0x10.5 Mastercraft Courser CTs / Warn XD9000i - Stripped for parts / junked :(
2004 Grand Cherokee Laredo - 4.7, bone stock - Wife's DD
NJ F-Body Owners Association