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

Hello!

Im just wondering what are the recommended fluids you would go for? Oil, Coolant, Tranny Fluid? I have a 1969 Dodge Dart Custom 4 door and I have gotten to crank a few times!!! I need to do a flush on everything though, since it sat for a few years. Im currently in the process of cleaning the tank and then ill hook up the new fuel sending unit, and maybe replace the fuel lines?