Today, on our 2016 GMC Terrain, we're going to be test fitting the Thule roof rack system consisting of part numbers THARB47. These are the Thule AeroBlade load bars. These also come in black. That's part number THARB47B. We'll also be using part number TH450R, and these are the foot packs that are going to be fitting around your factory-raised side rails. Looking at the front crossbars here, and… see more >