An open diff will transfer power to the tire with the least resistance. So if you have one tire on dirt and the other on the street, the tire on the dirt will spin. A limited slip will help transfer some of the power to the other wheel but they don't work in extreme situations. Like my truck has factory ls but if I get one wheel off the ground it will just spin the wheel in there air.
Last edited by whippersnapper02; 07-25-2008 at 03:44 PM.