How do you replace fuel pump 1980 Datsun pickup?

To replace the fuel pump on a 1980 Datsun pickup, first ensure the vehicle is safely elevated and disconnect the battery. Remove the fuel tank or access the fuel pump from underneath, depending on the configuration. Disconnect the fuel lines and electrical connections from the old pump, then remove it from its mounting. Install the new pump by reversing the process, ensuring all connections are secure and checking for leaks before reassembling everything.