Well it was just a matter of time, techs, and engineers...I have known about the air and electric diff locks for several years first on semis then the offroaders got into them and now the general public has access through the manufactorers. The locking diff on the semis that I drove did not get much use unless I was in a spot that I need full power to all wheels, Full Locking Differentials where not only both axles would lock in but the diffs themeselves would deliver power to all wheels so I could get in or out of certain spots.
