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Hopefully you saw the other post I did regarding the build my son, BIL and I did this week. The new cab we've installed is a 78, while the motor is a 74. I've got the Classis Car Wiring.com wiring diagram for a 74 F100 but not the 78. I'm just wondering how different they are? I plan on using the 78 cluster and wiring, and will install a new ignition switch.
Just trying to marry up the 74 engine and the 78 cab in the easiest way.