I have done tests as outlined in the shop manual, and the gauges check out fine. I have bought new sensors and installed them. I am a little leery about the suppliers knowing the difference between 55 and 56 models, mainly 6 and 12V. The temp sender has 2.5V at the sender and reads 18 ohms. The fuel sender reads 5.6V and is 51.3 ohms to 197 ohms. Have I been sent the correct senders? Very expensive, as I am Canadian with a very low dollar value.