Need help with my 1969 fj40 gauage cluster. Gauges do not work, or work sporadically. My goal is to keep the stock gauages. The cluster is a second generation with the fuel gauge on the left next to amp meter. I have the haynes repair manual 68-82. The manual has a good electrical section, but i think its based on the newer generation cluster. From my research these gauges are 7 volts. Is that correct? The power source is 12 volts. Is the step down to 7volts built into the gauge? If so how can i check that? If the step down is broke can i fix that? If i remove the cluster completely can i test the gauges individually with my ohm meter. What should be my readings be. I have replaced fuel and temp sending units. Any help would be great. a better repair manual or literature would be awesome.