The title says it all, I'm looking for the part number for the dash switch that gives me push button high range true 4wd for my 93. Any ideas? Would the switch from a 100 series work? I use high range 4x4 a lot in my other trucks, wish I could in the 80, and a friend says the wiring harness is there, he's done it, but can't find the part number for the switch. Thanks.