How do you replace a distributor on a 5.7L vortec?

To replace the distributor on a 5.7L Vortec engine, first, disconnect the negative battery cable and remove any components obstructing access to the distributor. Mark the position of the old distributor and the rotor's orientation for proper alignment during reinstallation. Remove the distributor hold-down bolt and lift the distributor out, taking care not to disturb the engine timing. Install the new distributor, aligning it with your marks, secure it with the hold-down bolt, and reconnect any components and the battery.