Do these use the factory mounting holes?

Yes—these are designed for factory mounting points, so no drilling or modification needed. They bolt straight to your existing mirror bracket locations.

Will the power adjustment work with my truck's existing wiring?

These mirrors are designed to integrate with factory power mirror systems. If your F-150 already has powered mirrors or power window switches, hookup is direct. If your truck is base model without power, you'll need to route power to the mirror assembly—refer to your vehicle's service manual for exact wiring details.

Are the signal lenses replaceable if one gets damaged?

Lens replacement method not confirmed—contact support with your VIN to confirm whether lenses are sold separately or if the entire mirror assembly needs replacement.