Wireing Harness,interchangeabilaty?

[old Chevy guy]

Hey all ! Iv'e started to try and sell some of the extra parts I've acumulated over the past years to A. thin the herd so to speak and B. raise some cash for other projects. I have several cabs to part and was wondering if the wireing was year specific and if so what if any year harnesses would interchange. Right now I'm mostly concerned with underdash but I will take a lessen on whatever I can learn from those who have ventured there before. For instance is a harness with gauges different from one with lights? Thanks

[sboris]

Messed with this some, and year specific, model and or option specific, they are different. Gauges to lights, manual or auto trans, air no air, etc. If uncut or hacked, list them year specific with options, I would think they would be needed by someone.. Hope that helps
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[old Chevy guy]

Thanks Some of that like air no air I would have figured but wasent even thinking about Standard verses automatic. Makes perfect sence. That pretty much confirms what I would have suspected. Thanks again.