How do you remove the fuel sending unit from the tank on a 1965 Dodge Dart?

There is a ring that you must tap off in a counterclockwise motion. The sending unit will easily be removed. My 65 GT got a new tank and sending unit replaced in under 2 hours. Getting the tank off was somewhat harder to do because of the rubber boot that connects it to the gas neck. One strap bolt and some wiggleing and off it came. If your gas gague is broken your voltage limiter may be failing under the dash. If your temp gague and gas gague both are not working that is likely the cause. It gets worse. If the voltage limiter is bad there is a good chance that the gagues are ruined... Dodge may have all the parts for about 150 bucks. All the best.