Hello, I noticed you asked gaurdian saint if he tryed to connect wires 2 and 3 and see what happens with the transfer, I have a 1990 my plugs matched your color, got reverse lights working. wired the stuff for the 4wd and no go, tryed to jump them like you stated and still nothing. you can tell that 4low kicks in cuz it makes that low whinning noise but still spins out. only thing have yet to do is the tests with a multimeter, bought one should be in the mail today. any help would be greatly appreciated its snowing like mad here. when i did my swap I did not have to unplug any vacum lines to run my clutch line.