Do these mount at the factory cab light holes?

Yes. These are designed for the factory cab light location — no drilling or relocating required. Bolt directly into the existing mounting points.

What fasteners do I need to install them?

Installation hardware is not included with these lights. Grab stainless steel bolts and washers that fit your factory mounting holes before you start — avoids a second trip to the hardware store.

Will the amber LEDs work with my truck's wiring?

These lights are designed as direct replacements for factory cab lights, but confirm your existing wiring harness matches the connector type before ordering. If your truck has a different electrical setup, you may need an adapter or harness modification.