When I bought the truck back about three years ago the gas gauge did not work, after reviewing all the information I could find on the internet I noticed who ever hooked up the gas gauge crossed the sender wire to the hot side and the hot to sender I drove it like this just using my odometer to tell me when to fuel up for approx. 2 years never really trying to check the status of the gauge. I uncrossed the wire and that fuel gauge worked like a charm. I think that mechanical gauge is a lot more forgiving than we give it credit for.