If you look under the drivers side of the truck, you will see a cable running parallel right beside the frame rail. Somewhere around the area at the back of the cab there will be an assembly connected to the cable which joings the cable into two seperate cables. If you look closely at the assembly, on the very end of the single cable there will be a nut, which when tightened will tighen all cables and the assembly. I recommend not tightening the nut too much, then you would place unneccesary tension on the cables.