Will this bolt directly to my existing mounting points?

Yes. This assembly uses factory rocker point mounts — no drilling or frame modification needed. Line up the studs and bolt in place.

Do I need to replace the left side too?

Not required, but matching both sides ensures consistent beam pattern and appearance. A single replacement works fine if only one side is damaged.

What's the return window if this doesn't fit?

Test-fit before final installation. Once power is connected and the housing is sealed, fitment issues are difficult to reverse. Verify mounting holes and connector type match your vehicle before committing.