How do you replace the alternator on a 1991 Toyota 4Runner 3.0 liter?

To replace the alternator on a 1991 Toyota 4Runner with a 3.0-liter engine, first disconnect the negative battery cable. Remove the serpentine belt by loosening the tensioner, then unbolt the alternator from its mounting bracket. Disconnect the electrical connectors and carefully remove the alternator from the engine bay. Install the new alternator by reversing these steps, ensuring all connections are secure and the belt is properly tensioned.