Sure.

How to Bench Test Your Fuel Gauge System (47-55 AD)

1) A 30 ohms Sending Unit is correct for this system. Attach a 12v power supply to your 12volt to 6volt converter. Runtz or a 6.8 volt Zener Diode are fine.

2) Connect your Ground wire to the outside of the gauge cluster.

RESULT: Indication of FULL TANK

3) Connect the terminal post of the Sender to the Sending Unit terminal on the gauge.

4) Connect a ground wire from the Sender to the Gauge Cluster.

RESULT: Indication Depending on where the Float is. All the way up is full/30 ohms/1.6 volts. All the way down is empty/0 Ohms/0 Volts.

Lots more info here near the bottom: http://devestechnet.com/Home/Native12VUpgrade

Most people get hung up because they do not make sure they have good grounds all around. A good idea if you decide to get it working and the gauge is bad is to get the NATIVE 12 volt replacement available from the vendors. That way no reduction is necessary. They are about $60.


Deve

1950 Chevy 3100 Deluxe Cab
1950 Chevy 3100 Standard Cab
In the Stovebolt Gallery
The Think Tank
More info and tips at Deve's Technet