Does this mirror use factory mounting holes?

Yes — mounts directly at factory rocker points with no drilling or modification required. Bolts straight on using existing hardware locations.

What does the heating element need to operate?

The heating function ties into your truck's electrical system via the factory wiring harness. Refer to your service manual for proper integration and circuit protection specs.

Will this mirror stay stable at highway speeds?

Factory-spec construction is engineered for stock truck duty. Verify your mounting bolts are tight before highway driving, and confirm no obstructions on the adjustment mechanism.