I got this truck with a clutch problem, dropped the transmission, replaced clutch, throw out etc. Before I started the 4wd worked, put all back together and the 4wd lever is in the 4 high position, light shows the 4 wd is on, but the 4wd does not work, and will not shift from the 4 high position into 4 low or 2 high. Keep in mind again, 4 wd is not really engaged.