Today, on our 2015 Ford F150 we will be doing an install of the Base Rails for Track Rack SR Sliding Truck Bed Ladder Racks, part number TA21501. These base rails are designed to work with your Track Rack SR and your Track Rack G2 Sliding Ladder rack system. Their customized holes to work with your specific vehicle with multiple different mounting options. The rails simply mount to your… see more >