You need to release (unhook) the left side tailgate support cable from the pickup box, remove the tailgate and the bolt attaching the right side hinge to the side of the tailgate, locate and drill out the large weld attaching the hinge to the backside of the tailgate bracket, install a new hinge to the tailgate and install the bolt, weld the backside of the new hinge to the original bracket, tape off the area around the hinge and prime and paint the hinge, and reinstall the tailgate on the vehicle and proceed to the section titled.