11 pin round wiring on back of gauge cluster

[Kessler]

So, I bought a replacement gauge cluster out of a 66 Chevy truck to install in place of my GMC 4000 gauge cluster as I found the former unattractive. Problem is don't know how to switch wiring over to the newer style...NOT a wiring guy! Is there a plug in existence that plugs in to the original 11 pin round connector and awitches to the more modern plugs for everything?

[AZKen]

NO. You will have to cut and splice. PM me and I may be able to help you.

[CALGMC]

I have the same problem, so no adapter to go from this round plug no newer style after market gauges? So only option is to cut into harness and splice individually?

[FetchMeAPepsi]

I wouldn't butcher up the OEM plug, that's for sure. Too few of them were made, it'd be like spitting on the Mona Lisa and using the Constitution to wipe your butt.

You can just get a few wires though, add plugs to them that'll fit in the OEM GMC sockets, plug them in there and into the Chevy part and it'll work great. This preserves the OEM plug for posterity and also allows you (or whomever owns it after you0 to revert back to the OEM gauges in the future.

[CALGMC]

thanks, my truck didn't come with the factory instrument panel. I'll work on some sort of adapter using bullet style plugs to go into the round dash panel adapter. Thanks for the advise, I'm glad I have options to keep it intact.

[AZKen]

I have the same problem, so no adapter to go from this round plug no newer style after market gauges? So only option is to cut into harness and splice individually?

Cal, I had a 1960 GMC. Those round connectors plug into a printed circuit, as you know. The Chevy's don't have that as far as I know. I don't remember how my harness was constructed or reconstructed over the years. You seem to have a connector upstream of that round one. If that is a mated male/female connector. Disconnect them and post several well lit pics of the mated connector and the halves. I can then possibly advise a mate for the round connector side of that connector or a way to wire to it without major cut and splice. Leave all of your harness untouched.
Post lost of pics at a proper distance to see the whole thing. Not far away pics. Not super zoom.

FYI: Aftermarket gauges are not usually compatible with 6066 senders. Gas, temp, pressure. Wiring may also change a little if a person goes with a internally regulated alternator and a voltmeter.

Of course, being a dedicated 6060GMCCLUB we would recommend finding a GMC gauge cluster. That is the first answer.

[James]

I have the same problem, so no adapter to go from this round plug no newer style after market gauges? So only option is to cut into harness and splice individually?

In the harness picture there is another connector about 10-12 inches away. Separate this connector and take a picture of both half showing the pins. Also any markings on the connectors. Might be able to find a mate to it. Then you might be able to make your own adapter.

[AZKen]

James, it would be a good idea to read the responses from others. You are posting the same thing already said.
Maybe that's where you got the idea :lolflag:

[James]

Sorry about that. Like mind think alike.

[CALGMC]

Some pictures of the harness.

[CALGMC]

more pics:

[CALGMC]

So my approach will be to disassemble from behind female portion of plug salvaging the harness for future use if and when I find a factory assembly. I will unfortunately need a factory panel in order to use my aftermarket gauge panel. It requires the shell of an original dash panel. I hate to cut up a factory panel to use my aftermarket gauges. Does anyone know of a back panel for these aftermarket gauges? Or does anyone know where I can find a nice panel so I can ditch the after market stuff for a clean dash panel and use my stock harness?

[James]

All you have to do is remove the male contacts from the connector shell and install new male contacts on the harness you cut out from the Chevy gauge cluster. You will need to figure out where the wires need to go in the connector. I don't have a wiring diagram to be able to tell you which one goes where. This will be your adapter harness.

[CALGMC]

great, thanks for the help.

[AZKen]

PM me if you need help wiring it up or finding parts.

[AZKen]

Just to be sure, you stated it correctly in post #12, but the connector in your hand is not the connector you will be removing contacts from.

[CALGMC]

So in post #12 I stated that I was planning on pulling pins from the harness and salvaging the factory GMC harness for future use. Since I have other items to complete the project i am putting the wiring portion on hold in hopes I can find a factory instrument panel.

[James]

So in post #12 I stated that I was planning on pulling pins from the harness and salvaging the factory GMC harness for future use. Since I have other items to complete the project i am putting the wiring portion on hold in hopes I can find a factory instrument panel.

You should pull the pins from the other two connectors (the one your holding and it mate) and use it on the Chevy harness. All you need is to install male pins on the Chevy harness. This will be your adapter harness.

[Funky61]

CALGMC; To use that aluminum insert you will need a 60-61 cluster panel like this one. You will need to cut a few extra holes here and there.

It's a metal panel as opposed to the later plastic gauge clusters.

[CALGMC]

James, funky61, thanks, I will purchase the chevy dash harness and modify accordingly to adapt it to plug into my factory harness. Appreciate the help on the billet dash, I'm on the hunt for a used 60 to 61 panel so I can use my aftermarket gauges. Appreciate all if the forum help.