Quote:
Originally Posted by srishiva  DL locks the differential and provides the same power the wheels. It does not give power to wheel in grip. That would be AWD systems. |
A 4x4 with a traditional transfer case and diff. locks at both the axles (a.k.a. Gurkha/Judo) distributes torque in such a manner that
each wheel gets as much as it can do justice to, and they generally spin only when all four can't cope with the situation. The major difference between traditional 4x4s and more sophisticated systems with a central differential (in place of a transfer case) and traction control (so called AWD) is that
all the wheels turn at the same speed in the case of the former.