Quote:
Originally Posted by ggkg  I am commented on a topic where most of my knowledge is based on what I have heard/read and a lot of it is based on discussion with RRNSS on phone. Anyway I will post for benefit of others as I dont know if he has time to clarify. The real guru will obviously express it better.
There is a lot of difference between 4WD and diff lock. In standard 4wd vehicles (like all vehicles such as jeep, Sumo/Bolero/Safari), power gets distributed to 4 wheels in such a way that the wheel with least resistance gets all the power. This is useless distribution when that wheel is stuck and cannot provide traction. DL allows you to redistribute it manually to wheel that can provide traction and not waste it on wheel that is spinning free.
Two wheel is even worse because it only provides power to 2 wheels, not 4. That means the range of situations where you are stuck are higher because all you need is the wheels that are driven to be stuck and your entire vehicle is stuck. With 4wd without DL that range of stuck-able situations is narrower. With 4wd and DL it is even narrower, though NOT zero. |
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.