[C4UC101969]

Guys I've been reading over your conversation and I know its been awhile, but I just got about 1.5 months ago 69 c10 and the fuel gauge always sits on empty, when I disconnect the ground form sending unit with key on it goes to 3 o'clock, ground it to gas tank it goes back to empty. My tank is always on full and the needle just does not move at all, so my question is this is a float problem, sending unit problem or a grounding problem. Any help would be greatly appreciated form mister.freeze and bstock1962 on this issue and anyone else please. In the picture uploaded i am driving with a full tank.