The last stage of the installation is to mount the 10-pound bottle in the trunk. In order to drill the mounting holes in the trunk, you will need to lower the fuel tank for safety (best accomplished with one quarter of a tank or less of fuel). Remove the passenger-side fuel tank strap and loosen the driver-side strap. Then unbolt the fuel filler neck from the body and pull it out of the tank as far as it will go. This will drop the tank about 6 inches on the right side-enough to get your hands in to tighten the bracket bolts.