How do you remove heater core from unit on Dodge truck?

To remove the heater core from a Dodge truck, first ensure the engine is cool and disconnect the battery. Drain the coolant and remove the dashboard to access the heater core housing. Disconnect the hoses attached to the heater core, unfasten any retaining screws or clips, and gently pull the heater core out of the housing. Finally, reverse the process to install the new heater core, ensuring all connections are secure before reassembling the dashboard.