Do these mirrors mount at factory connection points?

Yes. These mirrors use the factory mounting locations — no drilling or bracket fabrication required. Standard bolt-down installation.

How do I activate the heated element?

Heating is manual-controlled via a switch or lever on the mirror body itself. Turn it on when needed; it operates independently of your truck's HVAC system.

Will the mirrors stay stable at highway speeds?

Manual towing mirrors are designed for towing loads and highway use. Test your mirror position before heavy towing to ensure you're satisfied with sight lines and vibration.