I contacted my Ford dealership and talked to the one of the mecanics, who said what to do was underneath the truck, under the drivers seat, there is a module. and its a square black plug. unplugging these wires will shut off the 4x4 all together, this has been working great for me, just unplugging it when the conditions are good, then plugging it back in when there is snow. Just have one question tho, will cutting the transfer case relay (brown wire) stop the truck from going into 4x4 automaticly? and then i can use 4x4 by turning the switch into 4x4 high or 4x4 low ?
or does that just disable the 4x4 all together?
thanks
ryan