Do these require any special wiring or can I plug them straight into my truck's factory harness?

Factory harnesses are compatible with direct plug-in installation. If you've made custom electrical modifications or run aftermarket wiring, verify polarity before connecting power.

Will I need to aim or adjust these headlights after installation?

Yes. After mounting, perform a beam pattern check against a wall or garage door and adjust the vertical and horizontal aiming screws to match your vehicle's specifications. Refer to your truck's service manual for proper alignment procedure.

Can I paint or modify the black housing if I want a different finish?

The housing is designed for direct installation as-is, but can be sanded and primed if you plan custom paint work. Test any adhesives or coatings on a small area first to ensure compatibility with the housing material.