I have to replace the fuel tank sending unit on my '96 29 Scarab.The shop put in a Livorsi self calibrating sending unit, but it will not work with the stock guage. Rather than replacing one guage, I decided to try the Moeller Reed Switch sending unit which I believe works with traditional older style guages.

The tank looks to be aluminum and using a dipstick, I measure it at 12.25 inches deep from the bottom of the tank to the top of the tank. This is a 100 gallon tank. I plan to use the 10 inch sending unit which should show empty with a small amount of fuel remaining in reserve and not project too near the bottom of the tank.

I am posting this so others will know the depth of their tank as I could not find this information elsewhere.

did you ever find this information, i'm needing to know as well. replacing my auto meters with livorsi and livorsi needs to know to send correct sender