How do you change a starter on a Oldsmobile calais 1985?

To change the starter on a 1985 Oldsmobile Calais, first disconnect the negative battery cable to ensure safety. Remove the starter by unbolting it from the engine and disconnecting the wiring harness. Install the new starter by reversing the removal process, ensuring all connections are secure, and finally, reconnect the battery. Test the starter by turning the ignition key to ensure it functions properly.