I may have a little overkill but I carry parts in the jeep for short trips and more in the trailer for longer trips.
The full list is here:
Tom’s Expedition Equipment List
Jeep:
o Parts Box
ARB Air Line
Bearings (Timken SET 38, 387AS, 382A) Seal (Timken 415960)
Bearings (Timken SET 45, LM104949, JLM104910) Seal (Timken 471271)
Spare Front & Rear Spindle Nuts
Belts & Hoses
Brake lines(Flexible)
Caliper Kit
Electric Fuel Pump (E8012S)
Metal Strap ¼” x 2” x 12”
Power Steering Hoses
Radiator Cap, Thermostat & Neck
U-joints 1-0153, Spicer 5-760X
Oil, Gear Oil, Power Steering & Break Fluid
RTV Ultra Black Sealant
Duct Tape
o Small Parts & Welding
Small Parts Box
• Alumaseal
• RTV Ultra Black Sealant
• J B Kwik, Quiksteel, Locktite, Dielectric Grease
• Relay, Switch, Wire & Wire Crimp Ends
• Bulbs, Fuses & Wire Ties
• Miscellaneous Bolts, Springs & Hose Clamps
• Tire Repair Tools, Tire Repair Cords & Patches
• Valve Stem, Cores & Caps
• Spring Center Bolts
• U-Joint Strap & Bolt Hardware
• AA Batteries
• Tape Electoral, Hose & Thread Sealer
• Water Prof Matches
Trailer:
o Extra Parts Box
Carburetor, Water Pump, Alternator and Starter
Power Steering Pump
Ignition Control, Cap, Rotor & Plug Wire
Front Hubs
Pinion Seals (44 & 60)
Spring Bolts, U Bolts & Plate
Belts & Heater Hose
o Extra Fluids Box
Oil, Gear Oil, Grease, Power Steering & Break Fluid
PB Blaster, Carburetor Cleaner & Starting Fluid
Gear Oil Pump & Large/ Small Rolls of Rescue Tape
Alumaseal
Paper Towels & Plastic Bags
o Spare Axles & Drive Shafts