How do you remove a gas tank from 85 chevey pickup?

To remove the gas tank from an '85 Chevy pickup, first, ensure the vehicle is on a flat surface and disconnect the negative battery terminal for safety. Then, relieve the fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls. Next, support the tank with a jack, disconnect the fuel and vent lines, and unfasten the straps holding the tank in place. Finally, lower the tank carefully and remove it from the vehicle.