I know this is early but I want you guys to have as much time as you need if you want to go...
http://www.jeepsunlimited.com/forums/showthread.php?t=753436
I'm going to drive up on the 14th and leave on the 21st of April. I will be camping at slickrock
http://www.slickrockcampground.com/
The have hot showers and are cheap.
Its a fun time and some of best wheeling in the world!
If you go make sure you bring any parts you think you will need. Last year my trip was cut short because the 4x4 shop wanted $800 for a lunchbox locker and couldn't get it for a day...