SoCal, Not too many trail spares should be required for a Gen II Montero. If anything Tie Rod Ends or Center Steering Link maybe. The rest should be fine assuming the rig is actively maintained. I usually carry extra Coolant (1G) / Water (2-5G), Oil (5-6 qts), Transmission Fluid (1-2 qts).
Of course we should all have a spare tire in good condition. I rotate mine in so it's usually replaced when the other tires go.
For/Gear equipment each rig should have the following (in addition to cold weather camping gear):
- 1st aid kit w/ an assortment of bandages, pain killers (non-prescription/prescription), anti-acid, pepto-bismol, etc.
- Communication: FRS/GMRS, CB, or Ham radio for comm's. Let us know if you don't. Some of us may have an extra FRS walkie talkie you can borrow.
- A Printed topographic map of the valley (can download & print a map of the valley section by section at
http://www.nps.gov/common/commonspo...wmap.cfm?alphacode=deva&parkname=Death Valley). You can also get one from the park gate if you come in during normal operating hours.
- GPS/Compass/Map: Having a compass & map (topographic) are easiest to use (albeit cumbersome in a car). Albeit I'm far from any kind of expert, I can probably remember some of my BoyScout/CubScout training years ago & give you some decent pointers on how to orient yourself using them.