How do you replace an alternator for a 91 Geo Storm?

To replace the alternator on a 1991 Geo Storm, first disconnect the negative battery terminal to prevent any electrical shorts. Remove the serpentine belt by loosening the tensioner, then detach the electrical connections and bolts securing the alternator. Install the new alternator by reversing the removal process, ensuring all connections are tight and the serpentine belt is properly aligned. Finally, reconnect the battery and start the engine to test the new alternator.