1975 Instrument cluster changeover with Tach - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**RPOZ11** · 09-21-2014, 01:35 PM

Need some help looking at wiring in the wiring harness for adding this cluster.

The gauge panel that Im going to use has the Tach & AMPS gauge in it.

How do I tell if the wiring harness that I have is correct for that AMPS system?

***********************************************

My truck's prior owners mixed everything up and I am attempting to correct it all.

I have already replaced the front light & engine harness with a reproduction loom.

Ill try to post an image of the wiring harness that I have for the under dash / inside cab.

09-21-2014, 01:35 PM	#1
RPOZ11 72 BB C30 Super LongHorn Join Date: Nov 2002 Location: Chavez Ravine Posts: 1,606	1975 Instrument cluster changeover with Tach Need some help looking at wiring in the wiring harness for adding this cluster. The gauge panel that Im going to use has the Tach & AMPS gauge in it. How do I tell if the wiring harness that I have is correct for that AMPS system? ********************************************* My truck's prior owners mixed everything up and I am attempting to correct it all. I have already replaced the front light & engine harness with a reproduction loom. Ill try to post an image of the wiring harness that I have for the under dash / inside cab. __________________ 72 BB C/30 Longhorn Super HO72 No-Spin, #'s matching, Tilt, Tach, AC, AM/FM HO72 build : http://67-72chevytrucks.com/vboard/s...d.php?t=714492 2017 SS** Last edited by RPOZ11; 09-21-2014 at 01:48 PM.

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