GM Wiring Harness

wrench · #1 02-24-2018, 02:13 AM

Can someone please help me ID this wiring harness? Any help appreciated!

**L78_Nova** · #2 02-24-2018, 03:29 AM

It's a tach harness but no idea what from

wrench · #3 02-24-2018, 03:46 AM

I had a 'knee knocker' tachfrom a 67 chevelle years ago this could be the harness to it thanks

wrench · #4 02-24-2018, 02:45 PM

I figured out this a OEM 67 Chevelle-el Camino blinker tach wiring harness. 66 was called knee knocker because it was mounted on the right side on the steering column down low. In 67 GM moved it to the left side of the steering column up high enough it covered the left turn signal blinker. The 67 tach had a turn signal blinker in it.

**aawtech** · #5 02-24-2018, 03:39 PM

The 67 should have the light blue turn signal wiring in it. That looks like a 1966 tach harness to me. Has the one small 188 series terminal and the two 56 series ones side by side.

Donny

wrench · #6 02-24-2018, 08:18 PM

You are probably right. Other than the wire to the coil any idea where the others go?

**aawtech** · #7 02-25-2018, 01:43 AM

Yep, The two way and the single plug into the harness that comes out of the 66 tach cup, the pink goes onto the ign fused blade in the fuse box, and the gray goes to the lamps blade in the fusebox.

Donny

wrench · #8 02-25-2018, 01:51 AM

Thank you for your help. Now I know I can sell it without misrepresenting it.

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