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Gauge cluster compatibility

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Old Jan 11, 2024 | 10:31 AM
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Gauge cluster compatibility

I bought a 74 F250 crew cab 4x4 and the gauge cluster was missing. It is a F26 vin and the Marti report said it came with the 4 gauge option. I ordered a 74 with gauges cluster plate from LMC and my 18 pin plug is too wide to fit in the plate or the printed circuit. Everyone says these are year specific and will not interchange so what’s the next step. I am installing a new American auto wire harness so do I just find the narrower plug that should have been on the 74 and use it with the new harness. Please help.
 
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Old Jan 11, 2024 | 12:25 PM
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Originally Posted by 74 Crew
I bought a 74 F250 crew cab 4x4 and the gauge cluster was missing. It is a F26 vin and the Marti report said it came with the 4 gauge option. I ordered a 74 with gauges cluster plate from LMC and my 18 pin plug is too wide to fit in the plate or the printed circuit. Everyone says these are year specific and will not interchange so what’s the next step. I am installing a new American auto wire harness so do I just find the narrower plug that should have been on the 74 and use it with the new harness. Please help.
The plug can be remade with the proper ends and crimper. You'll need the tool that releases the individual wires so you can reuse the plastic housing or source a new one.. If you have any further questions post back.
 
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Old Jan 11, 2024 | 12:32 PM
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It is the plastic housing that is too big to fit in a 74 gauge cluster. Where can I source a smaller one?
 
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Old Jan 11, 2024 | 12:37 PM
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Originally Posted by 74 Crew
It is the plastic housing that is too big to fit in a 74 gauge cluster. Where can I source a smaller one?
I'm in my car now when I get home I'll be able to give you that information. Talk to you soon.
 
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Old Jan 11, 2024 | 01:32 PM
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Back home. Doesn't your "American Auto Wire" wiring harness come with OEM plugs ?



 
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Old Jan 11, 2024 | 02:00 PM
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It did come with lots of switches and plugs but for the gauge cluster it says wire into existing plug.
 
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Old Jan 11, 2024 | 02:07 PM
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Originally Posted by 74 Crew
It did come with lots of switches and plugs but for the gauge cluster it says wire into existing plug.
Ok, then you'll need to take a picture of the female side in your cluster and I'll look in the parts catalog. It may take a bit.
 
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Old Jan 11, 2024 | 02:47 PM
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New printed circuit for 74

New gauge plate for 74

Old plug from truck too wide to fit

 
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Old Jan 11, 2024 | 03:52 PM
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Did you try flipping the plug 180 degrees? One end is wide, the other is narrow. gotta match them up. There is only one width of plug, but there are different lengths. Yours looks like the correct length.
 
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Old Jan 11, 2024 | 04:09 PM
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I get the width is different at each end of the plug but my plug is too long for the slot.


 
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Old Jan 11, 2024 | 04:46 PM
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Here’s the connector from my ‘73. I was told by the guy at Centech wiring that it is a “GM style” connector. Not sure if that’s accurate or when they were used in our trucks but that’s the info I have. The connector body measures just over 2 1/4 inches in width.



 
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Old Jan 11, 2024 | 04:53 PM
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Yes 2 1/4” would be right to fit the cluster I have. Where do I get one of those?
 
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Old Jan 11, 2024 | 04:58 PM
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Good question but one that I can’t answer. The guy at Centech has always been very helpful. Give him a call and see if he can help you. They’re not open on Friday though (which magically seemed to be the day that came around whenever I had a question) so you’ll have to wait until the long weekend is over.
 
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Old Jan 11, 2024 | 05:01 PM
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Have a look here starting on page 109. The plug your looking for should be listed.
 
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Old Jan 11, 2024 | 05:07 PM
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Is this it?
 
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