If you have a complete set of tools like what is pictured below then bring them.
It's also a good idea to have the following:
- fuses
- flashlight
- jumper cables
- pliers
- hammer/mallet
- hatchet
- air guages
- duct tape
- electrical tape
- utility knife
- bailing wire
- small shovel
- gloves
- maps
- Charles Wells\' Moab guide book
- batteries
- tire repair kit
- zip ties
- recovery strap
- paper towels
- trash bags
- bungie cords
- water
- first aid kit
- FRS handheld radios
- cell phone
- emergency phone numbers
- fire extinguisher
- roadside flares
And a big ole container to store it all in. Something like this:

Make sure you take care and secure this bin in your cargo area. The last thing you want is to have 50-100lbs of tools flying through the passenger compartment.
There's probably a ton of stuff I'm leaving out so feel free to add to it.
Good luck! See you in Moab!
