Quote:
Originally Posted by t5noel
I've examined the difference between the two. There will be two additional ground wires and one additional power wire. Can I splice the added ground wires from the one ground? I would assume the added fused power would have to come from the fuse box.
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Yes, the additional ground wires can be spliced into the existing circuit #150 ground wire(s) already leading to the cluster plug.
The same goes for the additional ignition-switched fused power wire. That can be spliced into one of the existing circuit #39 power wire(s) already leading to the cluster.
Quote:
Originally Posted by t5noel
There are two wires for the fuel sender. Is the second for dual tanks? Can it be left out if so?
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The two fuel sender wires allowed the factory gauge wiring to accept gauge clusters with or without the optional tachometer.
The fuel sender wire leading to cavity #18 is used for clusters with the large fuel gauge located to the right of the speedometer. I believe it's also used for medium-duty truck tach clusters with the small fuel gauge at the bottom of the tach.
The fuel sender wire leading to cavity #7 is only used for tachometer clusters that have the small fuel gauge down in the lower left corner.
So depending on the style of cluster you're installing, only one of the 2 wires for the fuel sender will actually be used. I suppose you could remove the extra one but leaving it in there won't hurt anything ... the unused one just dead-ends at the cluster plug since there is no mating trace on the printed circuit.