Today on our 2015 GMC Acadia we will be testing the Thule AeroBlade Rapid Crossroad Roof Rack system using part #THARB47 for the 47-inch load bars, front and rear, and part #TH450R for the rapid crossroad foot pack. So for right now, I'll go ahead and begin by showing how to put the foot pack on the load bar. So you'll go ahead and remove your end cap, take your foot pack and you'll just slide it… see more >