Ok. They defintely stay above the bottom of the frame by atleast 3-4". Probably more pics than you need but I was messin with the flash and camera angle and blah blah....
Pics were taken from the side behind the front left tire.

Taken level with the bottom of the frame. No headers showing.

From the bottom looking up.

That pretty much says it right there.

Pan hangs down a bit. From that angle it looks like more than 1/4".