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Oil pressure idiot light/gauge swap
https://slantsix.org/forum/viewtopic.php?t=46827
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Author:  Jeb [ Sat Oct 29, 2011 12:21 pm ]
Post subject:  Oil pressure idiot light/gauge swap

After some searching I found a NOS oil pressure gauge for my truck that will fit in where the idiot light is currently at. I'm about to swap them out and I remember reading something on here about how these trucks are already wired for both the gauge and idiot light. How do I go about verifying this? Is there a connector or something behind the dash for the gauge?

Author:  olafla [ Sat Oct 29, 2011 12:40 pm ]
Post subject: 

Hi Jeb, there is a new electrical wiring diagram available for download at mymopar.com for the '79 model Trucks. I don't know how many differences they managed to make within 3 years, but it may be worth checking out.

Olaf.

Author:  Jeb [ Sat Oct 29, 2011 1:27 pm ]
Post subject: 

Thanks for the link. I dug out my old hayes manual and found out which wire goes to the sending unit. I just have to crawl under my truck now and see if it has the sending unit for the gauge. I know it has dual sending units.

Author:  Jeb [ Sat Oct 29, 2011 4:50 pm ]
Post subject: 

I did the swap tonight and it was surprisingly easy. I double checked my sending unit and it looks like I have to change it to the one for a gauge. I did however locate the connector in the harness for the gauge.

Here is a pic of it after the install. I'm still trying to track down a temperature gauge.

Image

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