72 Cheyenne Super Alternator Wiring
 

Hi, would anyone have a stock (or restored) 72 c10 with a stock alternator hookup that could take a pic of how the factory wiring is hooked up? my wiring harness has a small mounting bracket in the harnesss that connects to the back of the alternator and I just wante to hook it up the right way. Thanks

Re: 72 Cheyenne Super Alternator Wiring
 

The newest install I could find is from a '70.

Re: 72 Cheyenne Super Alternator Wiring
 

In that drawing, that sure looks like a Pontiac V8.

Re: 72 Cheyenne Super Alternator Wiring
 

it probably does look like a Pontiac V8. But it you look in 1972 C10 assembly manual, allot of the small block pictures are drawn looking like a Pontiac V8. Thanks for sending me that picure helps allot.

Re: 72 Cheyenne Super Alternator Wiring
 

This is a 67-72 Chevy truck forum.....that drawing is from the 67-72 Chevy GM truck assembly manual, so maybe they stole it from Pontiac.

Re: 72 Cheyenne Super Alternator Wiring
 

I can get some pics tomorrow for you. I have a survivor 72 .
Vic

Re: 72 Cheyenne Super Alternator Wiring
 

Yes please send a picture, Thanks Vic I would appreciate it.

Re: 72 Cheyenne Super Alternator Wiring
 

I got tied up yesterday on a dirt project but will get you one today.
Vic

Re: 72 Cheyenne Super Alternator Wiring
 

Here you go
Vic

Re: 72 Cheyenne Super Alternator Wiring
 

https://www.567chevyclub.com/images/C10/Alternator.jpg

1972 is a one year only alternator. Think of it as a hybrid of a 1973 12SI and a 1971 10DN. The 1972 uses the case of the 12SI but still requires an external voltage regulator like the earlier 10DN.

The easiest way to identify a 1972 alternator is the orientation of the electrical terminals.

https://www.567chevyclub.com/images/...nator-1972.jpg

https://www.567chevyclub.com/images/...nator-1973.jpg

Re: 72 Cheyenne Super Alternator Wiring
 

I must computer challenged. I can not for the life of me post pics either off my PC nor my crappy cell phone . I will have to send them to you direct.
Vic

Re: 72 Cheyenne Super Alternator Wiring
 

Hi, do you need my email address? Or mailing address?

Re: 72 Cheyenne Super Alternator Wiring
 

If you are getting a "Security Token" message that means that your pictures are too big and you need to size them down. I size all of mine down to 1150 pixels wide and the board software can handle them from there.....

Re: 72 Cheyenne Super Alternator Wiring
 

They weren't stolen from Pontiac. Pontiac hacked their way in and substituted the drawings to plant subliminal messages in the minds of Chevrolet customers. :lol:

Or it could be that since the Pontiac V8 came out a year earlier than the Chevrolet V8 Chevrolet saved some coin and reused the Pontiac drawings. And at that point in time GMC was planning on using a Pontiac V8 in their truck.

Re: 72 Cheyenne Super Alternator Wiring
 

LockDoc ! That is exactly what is happening . I am going to retake with smaller pixels and see what happens. Thanks for the tip
Vic

Re: 72 Cheyenne Super Alternator Wiring
 

lets give this another try
Vic

Re: 72 Cheyenne Super Alternator Wiring
 

Perfect Vic, Thanks so much!

Re: 72 Cheyenne Super Alternator Wiring
 

Your Welcome ! Hope that helps you out.
My truck is a real survivor and plan on keeping it that way.
Vic

Re: 72 Cheyenne Super Alternator Wiring
 

That and the speed of your computer and the local internet connection. I had century link though the phone company and could only load one photo at a time and kick me out if I tried to load two or more. Now I have T mobile and I just uploaded these four images and poof they were uploaded. Some of the show coverage photos I do used to take hours to load just the truck shots on here or load a Photobucket or Smugmug album.

This is a little tutorial I made back when for loading photos but I would upload one at a time and maybe two to see what handles as far as uploading without the computer, net or site having a hissy.

Re: 72 Cheyenne Super Alternator Wiring
 

Cam1968rsss, per your previously sent messages. After a bit of digging around we ended up finding an OE 1972 p/n 1102455 (2 F 7 = June 7th 72) alternator stored on the shelf and the alternator still had the below pictured 72 specific wire harness retainer bracket and mounting bolt attached. There is no spacer needed for mounting as the 72 style harness bracket mounts directly to a threaded standoff boss w/machined flat on rear of alternator, the smaller 71 and prior style alternator wire harness retainer bracket mounted to the ground stud on the rear of alternator, this grounding stud is not used/found on the 72 style 42 amp p/n 1102459 or 61 amp p/n 1102455 alternators. We have listed both the 72 harness bracket and alternator separately in the below linked f/s thread and given you first option/right of refusal, have a look and confirm in thread. Thanks for your patience in standing by while we dug this one up for you, Mel :chevy:


http://67-72chevytrucks.com/vboard/s...d.php?t=856155

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Re: 72 Cheyenne Super Alternator Wiring
 

Re: 72 Cheyenne Super Alternator Wiring
 

Re: 72 Cheyenne Super Alternator Wiring
 

Our above added OE used 72 alternator and alternator wire harness retainer bracket info and pics post has sparked some questions and inquiry's from a few members, so will add a bit more alternator and alternator wire harness bracket model year related info here in thread. Here are some pictures of the earlier OE Pn. 1100842 1971 and prior style alternator showing the dual stud and two wire plug setup and harness mounting retainer bracket orientation. The below added info and pics should help clear things up a bit and maybe help those interested in understanding the difference between the OE 71 & 72 style alternators, Mel :chevy:

The below setup resembles the parts diagram page shown in above thread post #2.

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Re: 72 Cheyenne Super Alternator Wiring
 

^ ^ ^ To add to our post, here are a few pics of an OE used 71 and prior style alternator (stud mounted) wire harness retainer bracket by itself. Mel :chevy:
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