So lately I've been having to give the wire to the top of the tank a wiggle/tug to get the fuel gauge to work a few times a week. I've done some research and it seems the terminal on top of the tank seems to be the culprit.

This thread from ROP has some pictures of the suspect area.

http://www.realoldspower.com/phpBB2/...ight=connector

Where can you get this terminal, or is there else that can be done?

 

Inline tube has the fuel sender pigtail, if you want fix it forever, I would clean it up and solder the wire directly to the brass terminal.

 

I don't see it on there site, is a phone call required?

The solder solution is intresting may end up going this route if I can't find the pigtail.

 

It’s under new products.

Part Number - INL10613 1968-72 Cutlass 442 Fuel Tank Sending Unit Lead Wire $18.00

I was able to crimp my factory one and clean both the pigtail socket and the post with 320 wet sand paper.

Best of luck to you, sounds very annoying