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- Jul 10, 2014
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- Calgary, AB
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I can confirm that both wires from the sending units do not go through the plug at the fire wall. They come through a separate opening just above the plug.
Man this sucks.
Yeah so it sounds like someone just wanted to make it work and just fudged it. In some ways that makes things easier... Although you do have a bit of work ahead of you hah.
I would still do wire tracing so you can make sure all wires are in their proper places for the sending units and valve.
Trying to locate a picture is pretty tough but essentially the way it worked was the wires for the tanks would feed through a grommet into the engine bay and then go into a plug. From that plug it would feed down to the tanks and valve.
There was 3 different setups for dual tanks including the elusive and VERY rare push/pull setup for the 73/74 era and then changing out in 75.
Most times when converted you end up with some kind of hokey mess of a 4 or 5 prong plug before it comes into the cab.
When I redo my wiring I am going to use a plug like this (http://i00.i.aliimg.com/img/pb/905/325/124/1124325905_200.jpg) and do it clean and make it function properly.