Does this mirror mount at factory attachment points?

Yes—these mirrors mount directly to factory towing mirror mounting points with no drilling or bracket fabrication needed.

Will this mirror stay locked in position while towing at highway speed?

The manual lock mechanism is designed to hold position under normal highway conditions. Test the lock engagement before hitting the road to ensure it's seated fully.

What fasteners do I need to install this?

Fastener specs and torque values vary by your truck's mounting design. Refer to your vehicle's service manual for the correct bolt size, grade, and torque specification for your year and cab style.