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Old 07-06-2013, 03:36 PM
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54 Desoto Firedome Wiring Confusion

While working under this car, I noticed this:

The device with two terminals on the side of the transmission may be a neutral safety switch, or it may not. I know that switch is located there in the 727 trans, not certain about this one. I don't see a neutral safety switch on the wiring diagram.

To make matters worse, I have four wires with male connectors that would connect to this whatever-it-is switch (if they need to be connected at all), none of which were connected and are so old, I cannot read a color code from them. For the life of me, I cannot find two more unconnected female connectors anywhere (the brake switch and wires are accounted for). No equipment appears to be missing from the area that the wires would connect to. I'm not aware that these wires were connected to anything when the engine would start and run (not doing that now), but they could have been and are the cause of my starter problems.

I only have the '53 schematic to work from and AFAIK, there is not an overdrive unit on this car.

Can anybody with knowledge of 50s Mopars identify this stuff before I have to spend hours tracing 60-yo wires to try and figure it out what it is and does?
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