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1973 - 1979 F-100 & Larger F-Series Trucks Discuss the Dentsides Ford Truck
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Wiring Harness

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Old Nov 22, 2007 | 08:27 AM
  #1  
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daltonw
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Wiring Harness

Does anyone know if I can use a wiring harness off a 74 F-100 in a 76 F-250?

Also will the doors and finders switch over to the 250 from the 100?
 

Last edited by daltonw; Nov 22, 2007 at 08:29 AM.
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Old Nov 22, 2007 | 12:03 PM
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wireing should be the same. the dist should be dura spark, the coil may be a touch diffrent but will still work either way

doors should interchange as well
 
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Old Nov 22, 2007 | 12:20 PM
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actually no ....the wiring is different for the cluster.

going from 76 to 74 is going backwards.

You can go up in years but not back,
 
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Old Nov 22, 2007 | 12:34 PM
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i thought in 73/74 was when they swapped from the points to the dura spark. didn't think about the cluster being diffrent. i was thinking under the hood would be the same. since its the same dist.
 
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Old Nov 22, 2007 | 12:36 PM
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I even think the Fuse boxes are different

Here come some pics

1974 cluster back

Notice wiring.





Read the very bottom of this schematic.

 

Last edited by Mil1ion; Nov 22, 2007 at 12:39 PM.
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