72 Bulk head wiring question - The 1947 - Present Chevrolet & GMC Truck Message Board Network

vjjack04 · 08-21-2023, 07:10 PM

Guys,
Trying to figure out wiring on this 72 Blazer I am working on. Trying to figure out what is what on bulkhead connector. I have looked at the schematic, but still confused. Here's what I am working with (see drawing). This is a replacement M&H bulkhead connector. Are the labels I have so far correct? Can one of you give me details on the rest or any other useful info? Thanks.

SeventyOne · 08-23-2023, 03:05 PM

Sorry, I don't have an M+H wiring harness but sounds like reaching out to them would be your best bet?

vjjack04 · 08-23-2023, 07:57 PM

Quote:

Originally Posted by SeventyOne

Sorry, I don't have an M+H wiring harness but sounds like reaching out to them would be your best bet?

Thanks. you have a point. Also, I am going to relook my little drawing...I think it may be off. I am hoping the colors align with the original configuration on the truck.

**dmjlambert** · 08-24-2023, 08:34 AM

I did a couple of corrections.

Name: blazer bulk head.jpg
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Size: 55.9 KB

I recommend look at this diagram and follow the wires to the things they connect to. http://67-72chevytrucks.com/vboard/s...27#post9186727

If you have questions, I suggest post them in the electrical section and you'll probably get more answers. Mention the year and type of truck you have, and what type of instrument cluster, gauge type or warning light type, or aftermarket. Pictures of what you're dealing with help. http://67-72chevytrucks.com/vboard/f...splay.php?f=64

vjjack04 · 08-24-2023, 01:02 PM

Dmjlambert,
Thank you; very much. I do appreciate it. I will go to the electrical section in the future. Have a good day.

08-21-2023, 07:10 PM	#1
vjjack04 Registered User Join Date: Jun 2010 Location: Bear Grass, NC Posts: 291	72 Bulk head wiring question Guys, Trying to figure out wiring on this 72 Blazer I am working on. Trying to figure out what is what on bulkhead connector. I have looked at the schematic, but still confused. Here's what I am working with (see drawing). This is a replacement M&H bulkhead connector. Are the labels I have so far correct? Can one of you give me details on the rest or any other useful info? Thanks. Attached Images

08-23-2023, 03:05 PM	#2
SeventyOne Registered User Join Date: Mar 2007 Location: Oakland, Ca Posts: 1,370	Re: 72 Bulk head wiring question Sorry, I don't have an M+H wiring harness but sounds like reaching out to them would be your best bet?

08-24-2023, 08:34 AM	#4
dmjlambert Senior Member Join Date: Apr 2016 Location: Cypress, TX Posts: 3,572	Re: 72 Bulk head wiring question I did a couple of corrections. I recommend look at this diagram and follow the wires to the things they connect to. http://67-72chevytrucks.com/vboard/s...27#post9186727 If you have questions, I suggest post them in the electrical section and you'll probably get more answers. Mention the year and type of truck you have, and what type of instrument cluster, gauge type or warning light type, or aftermarket. Pictures of what you're dealing with help. http://67-72chevytrucks.com/vboard/f...splay.php?f=64

08-24-2023, 01:02 PM	#5
vjjack04 Registered User Join Date: Jun 2010 Location: Bear Grass, NC Posts: 291	Re: 72 Bulk head wiring question Dmjlambert, Thank you; very much. I do appreciate it. I will go to the electrical section in the future. Have a good day.



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