How do you replace rocker cover gaskets on Toyota 3.0 V6?

To replace the rocker cover gaskets on a Toyota 3.0 V6, first disconnect the battery and remove any components obstructing access to the rocker covers, such as the air intake and ignition coils. Next, unbolt the rocker covers and gently lift them off, taking care not to damage the surfaces. Clean the mating surfaces thoroughly, then install the new gaskets and reassemble the covers, ensuring they are torqued to the manufacturer's specifications. Finally, reconnect any components you removed and the battery, then start the engine to check for leaks.