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73-87 Chevy _ GMC Trucks => Interior & Equipment => Power Windows & Door Locks => Topic started by: Grover 1 on July 19, 2009, 01:35:22 pm
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Once again I must come to the well for advice. Today I installed my newer (91) passenger door on my 78 truck. The question is the newer door has five wires to the power window switch and my old switch (which I kept intact) only needed three. What is the difference. Can I get by with just the three leads to the new switch or will my wife never be able to lower her window... ha, I like being in control anyhow, and make no mistake about it, I'm the boss, just ask me. Thanks for any ideas you have. - Grover
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Did you get the doors off a Suburban/Crew Cab?
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Not sure what the door came from, but that crossed my mind. I took the truck to my mechanic today and he said the two were not compatible. Can you think of any way this could work?
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Well, I can answer my own question. The later model doors have a 5 pin plug and the older (mine) have a 3 pin plug and they are not interchangeable. I fixed the problem by going to the wrecking yard and buying two late model doors and the complete wiring harness for that vehicle. I was going to replace one of my doors anyway do to lots of bondo - now it's an easy fix. I've been meaning to post some pics of my work in progress but have been busy with work, I'll get them up ASAP - Grover
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the easiest thing to do is get a dei 451 window module. you can use your old switches, plus it adds one touch up and down