Roof mounted cargo box

[dochummer]

I was under the impression that Thule does NOT support using their products with the H2 and the factory racks (even though they supply the Hummer cargo box). If you want to use their products, you're supposed to use their racks. If you want the U-bolts, you may just have to go to Home Depot...or, I thought that the cargo box was attached with smaller bolts to the inside rail of the cross racks..?