How do you remove a gas tank on a 1992 Nissan pickup truck?

To remove the gas tank on a 1992 Nissan pickup truck, first ensure the vehicle is on a flat surface and disconnect the negative battery terminal. Next, relieve fuel system pressure by removing the fuel pump fuse and starting the engine until it stalls. Drain the gas tank if necessary, then support the tank with a jack, disconnect the fuel lines and electrical connectors, and unbolt the straps holding the tank in place. Finally, lower the tank carefully and remove it from under the vehicle.