What is 4x4

  • Tom Swiss
  • Posts: 461
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  • Tom Swiss on Aug 18, 2010 09:03 AM
Hello clippers

Every vehicle has at least 6 wheels, 4 for driving, one for reserve and one for steering .

Joking aside:
- Vehicle 2x4, normal condition 4 wheels, two of which are driven; Front or rear wheel drive.
- Vehicle 4x4, 4 wheels all four driven, the additional two wheels of the missing axle are switched on if necessary.
There is also the differential that balances the two wheels (is in every car). If you make a curve, the outer wheel has a longer way - that is compensated, otherwise you would peel off the tires. But it has the disadvantage that if one wheel spins, the vehicle thinks of a giant curve and the corresponding wheel continues to spin and the other remains still.

So what helps?
- Switchable limited slip differential, then both are driven and you get back on the road (that's enough for me in Switzerland in winter, for example if there is an ice patch on one side)
- Switchable 4x4, drive on all wheels
- Difflock (differential lock everything); all 4 wheels are driven in a fixed manner, but the tires rasps, therefore only when necessary, for example deep sand.

What is advisable for you:
1. Ground clearance, because the roads are not that great and these vehicles are usually higher and you can see more.
2. 4x4 if you drive difficult routes - or you just feel better with it - e.g. play it safe on a first trip and you want to afford it (my variant)

SUV: Sport Utility Vehicle. As the name suggests. Usually bigger, sometimes 4x4. Ideal for example in the mountains when there is snow - or good roads in Namibia if you don't take a 4x4. The big disadvantage: too little ground clearance. So if 4x4 is necessary then no SUV! Have seen several times that a Toyota Hilux 2x4 had to pull out an SUV 4x4.

All right?