Today on our 2016 GMC Terrain, we're going to be test fitting the Rocky Mounts Roof Rack System consisting of part numbers RKY3054, these are the cross bars and RKY3002, these are the foot packs that are going to be fitting around your factory raised side rails and attaching it to your vehicle. You can also knock out this portion here and replace it with a lock core so you can actually secure it… see more >