Stock alternator to 12 SI alternator - The 1947 - Present Chevrolet & GMC Truck Message Board Network

**VetteVet** · 02-17-2020, 02:48 AM

Quote:

Originally Posted by maverickmk

Okay, that makes it a little clearer. I cut the brown & red wires at the old regulator and plan to use those to connect to the plug on the alternator. Is that correct? The wires that were on the back of the old alternator were blue & black, if memory serves me correctly.

Yes you are correct and all you need is this connector that you can get at most of the auto parts stores. about 5 buck if I remember.
Just use butt connectors or solder the red to red and brown to brown so that the plug connects the brown wire to no.1 and the red to no. 2.

The two wires were 16 gauge dark blue and 16 gauge white from the regulator.; You wont need those anymore. VV

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**maverickmk** · 02-17-2020, 09:26 AM

Quote:

Originally Posted by VetteVet

Yes you are correct and all you need is this connector that you can get at most of the auto parts stores. about 5 buck if I remember.
Just use butt connectors or solder the red to red and brown to brown so that the plug connects the brown wire to no.1 and the red to no. 2.

The two wires were 16 gauge dark blue and 16 gauge white from the regulator.; You wont need those anymore. VV

Attachment 1983470

I already have that connector hooked up. Thanks Andy & VetteVet for the help, I really appreciate it.

Andy4639 · 02-17-2020, 09:39 AM

Your welcome. Let us know how it turns out.

**maverickmk** · 02-17-2020, 08:40 PM

Quote:

Originally Posted by Andy4639

Your welcome. Let us know how it turns out.

Will do. Right now I'm experiencing a "little" project creep

It was originally supposed to be get it mechanically sound and drive it. Just like all my other projects, I got the while I'm here bug. Also, I want to do it once and be done with it. I installed relays for the headlights (GMC) and of course decided that the buckets needed to be replaced, which of course requires new springs and adjusters. Then, while I was there I might as well upgrade to the newer style headlights . . . chick-pona-nona-wana.

I picked up these little boogers from Amazon delivered today, as well new copper connectors. I just wanted to upgrade the alternator!

02-17-2020, 09:39 AM	#3
Andy4639 Old member Join Date: Jan 2002 Location: Liberty, & Garden City S.C. , U.S. Posts: 19,936	Re: Stock alternator to 12 SI alternator Your welcome. Let us know how it turns out. __________________ 1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs.



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