Do these bolt straight onto my truck without modification?

Yes. These mount at the factory rocker points—no drilling, cutting, or bracket fabrication required. Drop them in where the stock lights sit.

Are the LED bulbs replaceable, or do I have to swap the whole light?

The LEDs come pre-installed in the assembly. If a bulb fails down the road, check whether the individual LED unit is serviceable or if the whole light needs replacement—specs on that level aren't detailed here, so reach out if you need clarification before ordering.

Will I need to splice or modify the wiring harness?

These are designed as direct replacements, so existing Ford harnesses should connect without rewiring. Test fit and verify clearance before final installation to catch any surprises.