Does this bolt directly to factory holes, or will I need to drill new mounting points?

Mounts at factory rocker points — no drilling required. Use the existing fastener holes on your pickup bed.

Is the glass included, or just the housing?

Complete assembly includes the mirror glass, housing, and manual adjuster mechanism. It's ready to bolt on.

Will this work if my original mirror is cracked or missing the glass?

Yes. This is a full replacement assembly for either damage or upgrade from a broken mirror. Swap out the old unit and install this one at the same mounting points.