You can also pick up the needed stickers at what they call the DNR welcome center, or BNL motorsports who also has flags. Both are near the dune entrance. Just make sure to Air your tires down and put your stickers on before you enter the dunes. Other Duners and the DNR can be vicious if you don't.
There is a good chance I will be up that weekend also.
2004 WJ Limited, 4.7 quadradrive, 2.5 rusty's spring with Bilsteins, IRO swaybar links, 255/65-17 Falken Wildpeaks.
2002 WJ Overland, RCX 4" kit, 2" BB, Rusty's Flex joint UCA's, JKS trackbar, IRO Swaybar Links, Bilsteins, 285/75/16 Hanook Dynapro MT on DC-2's