Fuel gauge. Again.

I believe the old sender is a repop, as is the new one, so I'll try the resistor route if tracking down and cleaning all the system connections doesn't work. Thought since I had a reading that wiring was good but stands to reason it still could be a poor connection somewhere. Thank you both!

If the bends in the senders tube are identical, they are both reproductions. The sender with several bends didn't appear until 1975 or 6. Tube of the 67 sender would have only 2 bends, 1 about 30 degrees down and another 90 degrees.
I'm looking to get a used very wrong aftermarket linear sender to play with.
If you now have a spare for cheap ?