Have a 1966 with all aftermarket gauges and over time I have acquired all of the original gauges in working condition. When I went to wire them up I realized that they were going to be a little different then the aftermarket ones. The first two I will be hooking up will be the fuel and temp gauge. Does anyone have any diagrams or know what each wire is ran to. As always help is appreciated -Mike

 

Not sure about aftermarket gauges as to whether the Constant Voltage Regulator (CVR) unit is required, with the original it is. Basically an electrical shock absorber that that mounts to the back of the instrument panel that regulates oscillating voltage to gauges from between 0-10 volts.

Posting a link from Jim Osborn Reproduction wiring manual for 65-66. If intend keeping the truck for any length of time them tracing electrical gremlins likely to come-up.Suggest picking up a copy $7 from Jim Osborn, or Ford part supplier. 2nd link is in the event truck has the 'alt' gauge, just 1 of a couple ways of running the circuit.