The following are the basic 4x4 requirements for safe 4 wheel driving:

• Basic recovery gear
• Basic first aid kit
• Fire extinguisher
• UHF/CB Radio
• Tool kit, spare parts, a can of WD40
• 10 litres of water per person or more depending location
• Map of area and surrounds and/or GPS
• Matches, compass, torch, knife and a space blanket

Basic Recovery Kit

• Snatch strap
• Two rated and stamped 'Bow' shackles
• Shovel
• Axe
• Gloves
• Jack and jacking plate

Depending on the nature of the trip and the problems likely to be encountered, to the above you can add

• Manual and/or Electric Winch
• Tree protector strap, winch extension straps
• Snatch-Block, extra 'D' shackles
• High lift jack and accessories
• Air bag jack
• Chainsaw, snow chains - if applicable to location and state.
• Chain saws are illegal in some areas (such as National Parks) make sure you check before you leave home
• Recovery points securely mounted to front and rear of vehicle
• Tyre repair kit

The First Aid Kit

• Basic first aid manual (from Red Cross or St John Ambulance)
• Antiseptic fluid (Betadine, Dettol or similar)
• Antiseptic cream (Betadine or similar)
• Panadol
• Eye drops
• Assorted bandaids, strips/spots, wound closures
• Elastic or crepe bandages (for sprains and snake bite)
• Sterile gauze bandages (50 mm & 75 mm)
• Triangular bandages (to support limbs and hold dressings in place)
• Adhesive tape, cotton wool, tissues
• Scissors, safety pins
• Thermometer
• Calamine lotion, Stingose or similar
• Pencil and note pad
  

To that you can add many items

• Antihistamine tablets
• Itch/skin relief cream (for itch, bites, minor burns)
• Anti-diarrhoea tablets (or mixture)
• Gastrolyte - for treatment of diarrhoea
• Travel sickness tablets
• Andrews tablets, or similar, for indigestion
• Ear drops
• Temporary tooth filling mix to replace fillings, loose caps
• Nyal toothache drops
• Burn cream
• Cream/ointment for bruises and swelling due to injury
• Strepsils or similar
• Tweezers, splinter remover
• Rubber pointed eye probe, eye wash
• Methylated spirits
• "Airsplint" (for any broken limbs)
• Personal medication or tablets

The Tools to Carry

• Set of ring and open end spanners (to suit your vehicle)
• Adjustable spanner, plug spanner
• Wheelbrace, jack and jacking plate (30 cm square x 2.5cm thick board)
• Screwdrivers - Phillips head screwdriver
• Hammer, chisel
• Hacksaw and spare blades
• File, including a points file
• Pliers and wire cutters Feeler gauges
• Tyre levers
• Pumps and pressure gauge for tyres
• Tube/tyre repair kit
• Battery jumper leads
• Repair manual
• WD40, or water dispersant

Spares to Carry

• Full replacement hose and belt kit
• By Pass Hose for cooling system
• Fuses, globes, electric wire, spark plugs, plug leads, points, coil and condenser
• Tyre tube
• The above lists are a starting point and are not comprehensive.
• When planning a trip always be aware of the space and weight required for your spares and safety equipment