Need some help. I recently found out the PO put a fuel gauge from what appears to be a 75 and I have a 73. I received a replacement gauge for a 1973, but I would prefer to save time if someone has a diagram or photo on the correct pin placement. I have tried using the search engine, but I can't seem to locate the proper diagram. Can anyone help me out?

Thanks.

I don't believe that fuel gauges changed over the years other than early have silver dot centers and late have black dots - if that's what you mean. As to pinout - are you referring to the pins on the top of the sender in the front trunk on top of the fuel tank?

Click to view attachment

Hey Brian,

The back of the gauges that I am finding are different, in the layout, ie bulbs, and terminal placement.
Added photo of new gauge for reference.

I see the ground wire terminal, the +positive terminal, but I'm not sure what wire attaches to the terminal across from the positive, and then the small what appears to be a screw with the nut. Do[attachment=852145]es anything attach to that?

Red w/ white stripe to +, black to the warning light, green to G. There should be a brown that goes to the ground contact that has multiple wires on one spade. As far as I can recall, nothing goes to the stud.

Thanks Jim,,

Red and white to + check
Green to G check
Brown to Ground check
Black not sure which light is the warning light?

The PO has a number of extra wires that are as confusing as hell

Warning light is the light socket that is actually on the back of the fuel gauge portion close to the + terminal.

Love PO wiring! After finding over half the under-dash wires in my wife's Fastback were red, I scrapped the whole harness and did a full replacement with original colors. Little easier to come by for those cars...

Thanks again.

ahhhh - back of the gauges. gotcha. I have to stop chiming in so early.