'74 w115 240d gauge cluster wiring
 

I'm in the middle of swapping the 2.4 diesel into a different rig and have decided to use the factory 240d instrument cluster. I have the multi pin connector that plugs into the gauge cluster but the wires are cut off about 12" long. I have a Chilton manual and I've searched the web for hours and I cant find a diagram showing what wires go to what sending units.

please help me find a diagram.