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1948 - 1956 F1, F100 & Larger F-Series Trucks Discuss the Fat Fendered and Classic Ford Trucks

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Old Jan 30, 2020 | 09:05 PM
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brucewon
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What is this for?

Hey guys,

It's been a long time since I've posted. I joined this forum with a 55 F100 that I sold and now I'm working on a 56 F100 that I'll be keeping since it was my grandfather's.

I'm in the process of figuring out the wiring and can't seem to figure out what this is for and if it's needed with my setup. See below circled item.


 
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Old Jan 30, 2020 | 09:14 PM
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I believe that's your horn relay. You might trace the wires and see where they go. Chances are, you need it.
 
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Old Jan 30, 2020 | 09:21 PM
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Okay, thank you. I traced the wires but they weren't hooked-up, most likely because their are some trumpet horns installed.
 
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Old Jan 30, 2020 | 09:23 PM
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Not sure what your "setup' is, but that's for your horn(s).
 
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Old Jan 30, 2020 | 09:34 PM
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Thanks, the truck no longer has a stock horn setup. Doesn't really have much of anything stock anymore, which makes it interesting to work on. I have three different shop manuals . It's a 56 Ford with a 79 Chrysler Cordoba front clip (Gibbons Style), 65 mustang 3-speed transmission, Ford 9 inch rear, and a 92 302 converted to carburation. I'm working on adding the duraspark ignition, electronic fuel pump, and electric fan, hopefully the alternator can handle it!
 
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Old Jan 30, 2020 | 10:01 PM
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I think your stock '92 alternator is 60 amps unless the donor vehicle had A/C then it could be 75-85 amps. I think a wise move would have been to use the stock horn relay setup with the aftermarket horn.
 
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