SO since this is a universal sending unit, I would need to modify it to fit the new tank. First I had to measure the depth of the tank. The tank measured out at 8", and with the gasket about 8.125". So according to the instruction sheet, it vaguely tells you what length to cut things. So I had to cut it about 4" from the under side of the top down to the pivot point. And then the float arm needs to be cut, and bent to about the same.
So first of I had to disassemble the unit. Cut the tie straps, and unscrewed everything.
Then I measured down the 4" and saw that I would need to flip the mount around so the pivot point would be sitting at the 4" mark.
And since I wanted the ohm range switched around I just flipped it upside down and mounted it. Now it will read 10 ohms full, and 90 ohms empty....perfect!!