Today on our 2010 Ford Escape, well be testing the Thule sonic Medium roof-top cargo box in black part number TH634B. Well begin our test today by placing the cargo box onto the vehicle cross bars, and position each clamp over each bar. Well then unlock the box and open the lid exposing the two closest knobs. Well turn the knobs to bring the clamps up around tightly each bar. Youll know when the… see more >