Welp... turn out ima idiot lol. The tank is groumded.. but i guess the grpund isnt good enough on the body or frame.
I added a 10ga ground from the battery terminal to the fender wheel well and now my gas gauge works. Turns out tye last step on the tsm was right. (Check grounds)
Im going to add one to the frame as well. I noticed the ground on my Jeep is a typical 4/6ga wire going to the a.c compressor on the block. And there is no other ground anywhere. The vehicle is getting its ground from the block only
So i cut that lead terminal off and put the brass terminal on that i prefer and added that ground which i mentioned. Ill do that frame ground i mentioned. And probably replace that starter wire too. It corroded old.
Thank god i dont gatta mess with the sending unit. One less project