fuel gauge ....

[budder]

Having half rebuilt my dodge i can't seem to find the wire for the fuel sender unit does anyone know what colour it is or where i could find it.
The cab is a b300.
Thanks craig

[sasktrini]

gauge wire (purple on mine) should go from cluster harness to centre post of tank selector switch, and then wires (blue and grey on mine) on the top and bottom poles on the switch go to the respective tanks senders.  The tank selector switch has two more wires (black and grey on mine) that come from the fuse panel, and the other out to the tank selector valve to physically change the fuel draw from the two tanks.

[chicknnhead]

I was thinking it was pink, maybe our right and mine was faded purple, but mine is a 76 mb300(b300)

[DaveVA78Chieftain]

For 1979 van chassis with single tank (circuit F12):
18 gauge Light blue at tank.
18 gauge Light blue with black strip from first connector (single pin) to instrument cluster.