I'll get some pics as I mount it back up this week. There are a few hex screws on each flush mount rail that hold the factory flush rails to the roof. You remove the most forward and rearward ones and replace them with the studs included with the Yakima foot kit. The racks feet slip over these studs and fasten securely with an included nut.
The keel over brackets clamp around the whispbars.
This video shows how they are installed. My bars extend beyond the mounts as I wanted extra width.
This video demos the Keel Over canoe mount.
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