In order to take out and install the fuel tank, one, raise and hold up the back of the truck. Then take off the fuel tank drain plug and empty the gasoline into a metal container and fit the drain plug back. Detach and connect the fuel pump line in the tank, and the line in the condenser tank or vapor valve in the fuel tank. Disconnect the fuel return line may be required. Next unplug the lead of the fuel sending unit and the electrical connector. Pull out the fuel tank which contains bolts at the mounting bracket and drop the tank. Installation is done in the converse sequence of removal.