Which Fluids are recommended? 1969 Dodge Dart 273 3 Speed Torqueflight Tranny

Nico O'Hara said
Im currently in the process of cleaning the tank and then ill hook up the new fuel sending unit

If you still have the OEM sender DO NOT DAMAGE IT OR THROW IT AWAY.

aftermarket senders are horrible and inaccurite. You can rebuild yours or have it rebuilt.