I may be being dumb here, but I am not sure if classic instruments vintage cluster is the same color coded to oem wiring.
I will have to run new wire for oil pressure, but I should be able.to de pin oem plugs and wire directly into new cluster if I know what each wire.does.
Do you have the PDF Installation Manual??? I just scanned through it and it seems to indicate the color coding for each wiring connection to their gauge package.
Not sure what company you got your wiring harness from. If they claimed it matched original OEM harness colors, it shouldn't take much to match up between that harness and the Classic Instruments wire colors.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
Don't know if all do, But I've seen like a dozen instances where the aftermarket part for a specific make/model fitting having the same color. My examples have all been GM vehicles, and not every single wire but majority.
Chip
'Rusto-Mod' '51 Chevy 3600 5 window | C4 Corvette front/rear suspension & drivetrain | everything else looks old and stock '92 GMC Sonoma GT #15 of 806 '91 GMC Sonoma GT Extended cab 1 of 1 Trucks, Trucks.....and more Trucks
Below is a capture ffrom a reproduction 1960-66 Factory Assembly Manual with the wiring diagram, listing wire color codes and gauges. Hope this may help you out.
Last edited by Peggy M; 06/30/20245:16 PM. Reason: typos
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
Sounds like you got a bunch of it ironed out! Progress is good.
~ Dan 1951 Chevy 3 window 3100 Follow this story in the DITY Gallery "My Grandpa Carl's Truck and How it Became Mine" 1966 Chevelle (Wife's Hot Rod) | 2013 Chevy Silverado (Current daily driver) US Army MSG Retired (1977-1998) | Com Fac Maint Lead Tech Retired (1998-2021)
I knew brown was the correct color for the tach, I had no idea which pin it would go back into in the plug as I had removed everything I though I did not need. I called Holley and they directed me to a pic of the plug which gave me the info I needed. I hope it is the correct plug in the pic.