The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - 47-55.1 Aftermarket Steering Column Wiring Issues

mr48chev · 02-10-2017, 01:48 PM

This is just the Ididit plug to connect your wires to the GM style switch plug to make a nice neat setup http://www.ididitinc.com/accessories-3/Wiring_Acc-62

Part number is probably available though Summit or other vendors.

Summit, Jegs and even Amazon show it
https://www.summitracing.com/parts/idt-3106050010

Wire color wise what is listed as "new" on this list that I copied off Squirrel's post on the Hamb should be right.

this seems to pop up occasionally, someone needs to wire a later GM column into an earlier GM car, or vise-versa....and GM changed the color codes some time in the early 60s. Old is the 50s and early 60s color code, Function is what the wire does, New is the mid60s- and newer color code. Some of the columns have all black wires with a color stripe, so for these the New color is the color of the stripe on the black wire.

Old----------function----------New

pink---------left rear----------yellow
purple-------right rear-------dark green
light blue----left front--------light blue
dark blue----rightfront-------dark blue
white------brake switch-------white
yellow---power from flasher----purple
brown----------horn-----------black
n/a power from hazard flasher-brown

02-10-2017, 01:48 PM	#4
mr48chev Registered User Join Date: Jul 2007 Location: Toppenish, WA Posts: 15,379	Re: Aftermarket Steering Column Wiring Issues This is just the Ididit plug to connect your wires to the GM style switch plug to make a nice neat setup http://www.ididitinc.com/accessories-3/Wiring_Acc-62 Part number is probably available though Summit or other vendors. Summit, Jegs and even Amazon show it https://www.summitracing.com/parts/idt-3106050010 Wire color wise what is listed as "new" on this list that I copied off Squirrel's post on the Hamb should be right. this seems to pop up occasionally, someone needs to wire a later GM column into an earlier GM car, or vise-versa....and GM changed the color codes some time in the early 60s. Old is the 50s and early 60s color code, Function is what the wire does, New is the mid60s- and newer color code. Some of the columns have all black wires with a color stripe, so for these the New color is the color of the stripe on the black wire. Old----------function----------New pink---------left rear----------yellow purple-------right rear-------dark green light blue----left front--------light blue dark blue----rightfront-------dark blue white------brake switch-------white yellow---power from flasher----purple brown----------horn-----------black n/a power from hazard flasher-brown __________________ Founding member of the too many projects, too little time and money club. My ongoing truck projects: 48 Chev 3100 that will run a 292 Six. 71 GMC 2500 that is getting a Cad 500 transplant. 77 C 30 dualie, 454, 4 speed with a 10 foot flatbed and hoist. It does the heavy work and hauls the projects around. Last edited by mr48chev; 02-10-2017 at 03:22 PM.