Download 1998 Ford Crown Victoria How To Remove and Install Suspension Lower Arm 1. WARNING: IF EQUIPPED, THE ELECTRICAL POWER TO THE AIR SUSPENSION SYSTEM MUST BE TURNED OFF PRIOR TO HOISTING, JACKING OR TOWING AN AIR SUSPENSION VEHICLE. FAILURE TO DO SO CAN RESULT IN UNEXPECTED INFLATION OR DEFLATION OF THE AIR SPRINGS, WHICH CAN RESULT IN SHIFTING OF THE VEHICLE DURING THESE OPERATIONS. CAUTION: The rear suspension fasteners are important parts because they effect performance of vital components and systems and can result in major service expense. They must be replaced with the same part number or an equivalent part if replacement is necessary. Do not use a replacement part of lesser quality or substitute design. Torque values must be used as specified during reassembly to ensure proper retention of these parts. Orientation of the fasteners is also important on all rear suspension arms. Make sure the fasteners are installed in the same direction as when removed. If equipped, turn the air suspension service switch, located in the luggage compartment, off. 2. Mark the rear suspension shock absorber relative to the protective sleeve with the vehicle in a static, level ground position (curb height). 3. Raise and support the vehicle. Refer to «Section 00-02». 4. Remove the wheel and tire assembly.