Fuel sending units

I used an endoscope to look into my fuel tank this evening and found that the dime store replacement pickup is about 3 inches from the bottom of the tank. I have an NOS sender on the way so I will play with the old dime store replacement and try bending the tube to see if the float will be 1/2 gauge when there is 9 gallons in the tank and E or below with no gas in the tank.

The 3 inches explains why I ran out of gas with 3-4 gallons in the tank!
Common problem with aftermarket senders. Happened to me with a couple of them over the years. The pickup tube location has to be checked with each of those sending units. There's even ones where the pickup tube is bent too far down thus preventing the sending unit from sealing properly.

When you get your OEM sending unit be sure to submerge the float in water for a day or 2 to see if there's any pinhole leaks. If you need a new float you can use the one off your junky sending unit, it will fit.