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Old 06-20-2021, 09:26 PM   #1
3x2GTO
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86 Silverado 4 headlight wire harness interchange

I need all of the wiring from the firewall connector to the 4 headlights and park lamps on my 1986 Silverado, previous owner thru it away. What years will interchange? Thanks!
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Old 06-21-2021, 11:05 PM   #2
Pontiac1976
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Re: 86 Silverado 4 headlight wire harness interchange

The break down: Any year from 83-87 that have the dual headlight option but the option was easier to find 84-87
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1977 REG cab Long Bed with a 1984 Front Clip, 82 305 .60 over 9.0.1 flat top pistons, 4bbl, TH350, w/84 SS-intake & cam , w/ 1977 big block rad, 1975 gear box, 1984 master w/ metric fittings top & SAE fitting @ portion block, 1975 3.42 gear open diff. Duel 77-87 Factory air cleaner, duel inlet from rad support . Down sized 9' to new 8' Steel flat bed
Was a 77 454 w/308 gear. Taken out 550 lbs. up front with motor clip change.
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Old 06-22-2021, 05:07 AM   #3
3x2GTO
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Re: 86 Silverado 4 headlight wire harness interchange

Thanks!
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Old 06-25-2021, 07:12 PM   #4
86454k30
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Re: 86 Silverado 4 headlight wire harness interchange

Actually that isn't totally true.
81-82 turn signal in bumper
83-84 washer pump in wiper motor
85-88 washer pump on fender
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