64 Dart Fuel Gauge

Does anyone have a diagram hooking a solid state regulator to a fuel gauge with a built in voltage regulator? Also, I see a part source on ebay with the solid state regulator for $25.00, it looks nothing like what hooks to my cluster, it is a steel cased plug in type. I also see I believe is a part number 7885 which looks like a black resistor with 3 prongs. Any pics and part numbers showing the hook up would be appreciated. I think I can do the repair myself since I have had my cluster apart and back together 3 different times in the past. I know I have to bypass the built in fuel gauge regulator to do this. My gauge cluster has a capacitor mounted on the back of the circuit board.