update is that the a/c and transfer switch are on the same wiring harness, when I turned the a/c on the transfer switch got a too low voltage reading and tried to engage the 4wd, another smooth electrical thing dodge did, also noticed that the wiring harness had rubbed a little on the frt shaft, seeing how it constantly spins and wore thru the protective coating for the wires, if you guys with 4x4 have an issue or even before an issue, crawl under truck and check that the harness its rubbing, for now until I replace the transfer switch and fluid I pulled the fuse for the switch, guess truck is getting old,

 

Now I'm no expert, but WHY IN THE HELL would you switch into Lo at such a high speed?