Will this bolt straight to my radiator without modifications?

Yes. This fan uses factory mounting points — no drilling, adapters, or shroud work needed. Bolt it to the radiator support just like the original.

Do I need to drain the coolant to swap this in?

Not necessarily. You can remove the fan assembly without touching the radiator hoses if you're careful. Work methodically to avoid puncturing lines, but a full system drain isn't required for this job alone.

What if the fan doesn't spin freely when I unbox it?

Spin the blades by hand before installation — they should rotate with minimal resistance. If they're seized or grinding, contact support for a replacement before you install it.