Originally Posted by njbeachrat

In the picture you provided those are the "universal" mounts that have a rubber strap that wraps around a bar (any bar within a certain diameter). The rubber wraps around the bar and then kind of clips to itself and then you tighten a bolt that in turns tights the strap around the bar. I had a set of the thule versions on my tahoe's factory rack. I think the prduct # was 450 (I am probably wrong) but I don't know if this will help you or just confuse the situation more...