OK Im not a moron. I know making a strictly 2wd truck into a 4wd is time consuming, expensive, and a complete waste of time. This seems different. I have a 1st gen (2000) durango w/86000 miles and rust free. It has the differential at center console that allows you to put it in 4wd highlock and 4wd lowlock but otherwise (unlike my original 1st gen) the differential lever sits in a 2wd position. Can this be changed to the "4 auto" I believe it is called?