Limited Slip Differential

In a trial truck, a differential offers a better turning circle, but they send all of the torque to the wheel with the least traction. One way to prevent this, while still having a decent turning circle, is a limited slip differential, or LSD. You can build one with the 4-studs wide differential with a setup like this idea by Sariel:

However, this idea is 6 studs wide, and works better in studfull constructions, so it is not very well suited for studless constructions. There is another way that is simpler, more compact, and that uses the new differential. Just follow the vid link.

http://www.youtube.com/watch?v=JX5YgNankww