8, 10, 12, 14, 17,19mm wrenches (2 of each) ratchets and sockets, assorted vice grips, mechanics wire, wire strippers, and several screwdrivers. oh and a good ol big hammer...
i keep a full backpack and ratchet set in the truck.
spare parts are wires, cap, rotor, plugs (used parts)
rebuilt locking hubs, spare oil, water, gas.
try to keep as meny tools and parts as i can in the truck...
plus axe, shovel, come along, and ratchet straps.