The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Where does the negative battery cable wire go?

**71CHEVYSHORTBED402** · 10-19-2022, 02:52 PM

Good information. Per the manual my negative cable mounts on my BBC using the lower A/C compressor bracket's bolt nearest the fuel pump. It shows a washer of some sort as well, probably a ground washer. I believe it routes through the accessories handle on the front a/c bracket.

Interest PJ, Greg and I were just talking about the clips for the positive cable. I believe my Chevy had two off the oil pan, and one off the frame rail. For what worth, the clips on the frame rails vary, same their locations but close enough.

I'm still trying to understand more about the junction block. Takes three wires:

1. Red: from alternator, with fusible link. I thought this was for the battery gauge, but? Seems it serves to charge the battery, as well. Heck, I don't know.

2. Black: to cab with in-line fuse. I thought this served for the battery gauge only. What does it do?

3. Red: from positive battery terminal, for power some place

and battery gauge

10-19-2022, 02:52 PM	#12
71CHEVYSHORTBED402 Senior Member Join Date: Feb 2009 Location: Northern Nevada Posts: 7,157	Re: Where does the negative battery cable wire go? Good information. Per the manual my negative cable mounts on my BBC using the lower A/C compressor bracket's bolt nearest the fuel pump. It shows a washer of some sort as well, probably a ground washer. I believe it routes through the accessories handle on the front a/c bracket. Interest PJ, Greg and I were just talking about the clips for the positive cable. I believe my Chevy had two off the oil pan, and one off the frame rail. For what worth, the clips on the frame rails vary, same their locations but close enough. I'm still trying to understand more about the junction block. Takes three wires: 1. Red: from alternator, with fusible link. I thought this was for the battery gauge, but? Seems it serves to charge the battery, as well. Heck, I don't know. 2. Black: to cab with in-line fuse. I thought this served for the battery gauge only. What does it do? 3. Red: from positive battery terminal, for power some place and battery gauge Attached Images __________________ Tony 71 Custom Deluxe, SWB, 2WD, 402, A/C. I developed an assm. guide "kit" for restoring the truck from ground up. With assys, the guide accts for 1000s details, OEM identifications & part numbers, written in short order. 700+ images of assm., illust., charts, and points of interest. Much of the info. applies to all 67-72 GM trucks, and to a lessor degree all 67-72 GM vehicles. My build thread, and more on the guide https://67-72chevytrucks.com/vboard/...d.php?t=730025 Last edited by 71CHEVYSHORTBED402; 10-19-2022 at 05:49 PM.