I ended up buying genuine Toyota roof rack bars. This is the front and middle bar. On the instructions it says not to use the front attachment point. Is there a reason for this?
http://wiki.shopperoutletnetwork.com/images/pdf/RhinoRack/RhinoiSheets/RSP/RSP17.pdf
http://wiki.shopperoutletnetwork.com/images/pdf/RhinoRack/RhinoiSheets/RSP/RSP17.pdf