According to Thule, the 4002 fit kit will only work with the 460 & 460R Footpack.
You posted that you used the 480R Foot Pack, is that accurate? I don't have a stocking Thule dealer in my area so I have to order online and want to make sure I order the correct one. Thanks.

http://www.cargogear.com/OneItemInfo...THAUQ7PDARBK07