The easiest way to mount Maxtrax onto Mt. Hood crossbars is to use M10 channel nuts fromRhinoRack. They slide perfectly into the channel of the crossbar and have the same threadingas the Maxtrax pin set. You will need to cut 20mm off the bolt on the pins to get the best results.The other option is to drill 4 holes into the crossbars so that the pin set can mount on thecrossbars without the M10 sliders.