This process is far simpler when the fuel tank is empty, and certain models have a drain plug to do this; though, where the drain plug cannot be removed, then the work must wait until the tank is empty or empty the contents into a recognized container with a siphoning kit, which can be found in most auto parts outlets. The first step is to take the fuel filler cap out to release the pressure in the fuel tank and the cable attached to the negative battery terminus. In case the tank is full or almost full drain fuel into a certified fuel container. Lift the vehicle and set it safely on jackstands then become acquainted with the fuel tank assembly design before moving on to disconnect the hoses of the fuel pump and the electrical connections. Take out the frame of the power plant, drive shaft and differential, and hold the entire rear suspension/crossmember assembly up with a transmission jack, unbolt the suspension to the body and get it out of the car, which will also involve loosening the brake lines at the crossmember and unattaching the parking brake cables at the calipers. Secondly, take off tank protector and prop the fuel tank with a floor jack with a rigid plank between the jack head and the fuel tank to support it. Within the trunk, unlock the access panel, unbolt the fuel filler neck, and unattach the hoses at the tank, and be sure to reconnect the hoses so that the fuel system is not leaked and contaminated. Peel the bolts on the fuel tank retaining brackets and withdraw the tank out of the car. Installing is the opposite of dismantling, and also, do not forget to bleed the brakes.