go back to straydawgs site.. its pretty easy for the apehangers. Great set up if you need the extra space on top.
I've got the simple method going.. steelhead's with mightymounts and one shortened yak. crossbar. No second rack, everything mounts to the existing crossbars. I think it will make more sense once you have the parts in front of you. I've got a few pics of it on my site as well.

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