Thread: Central Diff.

It allows the front & rear wheels to turn at different speeds, say when going around corners. The front wheels have to travel further than the rears in that case & the centre diff "slippage" action allows for that.

However, because of the "slippage" the centre diff allows, it means you can come unstuck when off road. If one wheel loses traction, the centre diff will slip & all you'll have is the wheel without traction spinning hopelessly.
Locking the centre diff locks the front & rear propshafts so power is sent to both ends of the car. If one front wheel lifts, you'll still have power to the rear.

Hope that helps.

Basic but good explanation:

HowStuffWorks "How Four-Wheel Drive Works"

http://en.wikipedia.org/wiki/Differe...hanical_device)

So what happens when you say, have left front and right rear off, how is the power sent then?? does the power go to the other wheels on the ground or are you stuffed because you have only 2 wheels on the ground(the ones in the air spin)?

If you get one wheel on each axle in the air than you are back to zero wheel drive.

That's why they invented LSDs and Lockers

Yep, it's called "cross axled". A LR has a fair bit of wheel travel though so you'll still get through what the Toyotas get stuck in .

Usually a bit more momentum will get you through if you do get 2 wheels in the air.

Originally Posted by Scouse

Yep, it's called "cross axled". A LR has a fair bit of wheel travel though so you'll still get through what the Toyotas get stuck in

Here is a Toyota cross axled on the ARB demonstration rig.



The rear right and front left tyres are left hanging and have no traction.
The T has no centre diff, so it is effectively the same as the centre LR diff in locked position.

To continue driving, it was necessary to engage the lockers in the front and rear differentials.

Ah ok cool, i crossed axled my dads 130, trying to get it stuck and to see the travel it had. hints the questions. I chose low gear 1st NO throttle to do this(i know to get over it use the throttle) chose a dirty big rut in our gravel pit, it got hung up. With diff lock it got across. another question i guess you could add to that is how well does the TC work on the 110, i'm getting one in few weeks, thought this would be a good test for it to work out lockers or not.