Is there a fix to front brake calipers rattling.

Did you put the lube (that comes with the calipers) on it? My other question is, What do you mean by "rattling"? If we can get a little more detail, that would help us help you.

You may need to get some anti-rattle shims or clips that fit behind the brake pads and help keep some of the rattling from happening. You may also have rotors that are out of round and are dragging/causing the calipers to vibrate when braking.