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Is there a light in the dash on a 79 to say that you are in 4wd? I have one plug left on my wiring harness under the truck and it comes to the t-case, but i cannot remember disconnecting it? And i cannot find anything on the t-case to plug it into. And no it is not the back up light, i got that plugged in already
I'd say no...I'm in the process of tearing apart my dash right now. Had to order a new instrument backing from JBG today, mine is crumbling. I took one out of my 75, found out it was different, but spent enough time inside swapping things to say there isn't a spot in either circuit board for a 4x4 light. JBG says the back plates are for 75-79, but my 75 was a bit different than the one I'm replacing in my 77. I don't know if there was another change some other time???