Ford 3U2Z-5310-AA Front Spring

For installation, set the upper insulator on top of the spring, using tape to hold it in place if necessary. Place the spring between its seat on the axle tube and the frame seat, with the pigtail (lower end) of the spring pointing toward the left side of the vehicle. Raise the axle assembly with a floor jack and insert the studs on the lower ends of the shocks into their holes in the brackets on the axle tubes. Install the stud retaining nuts, but don't fully tighten them yet. Snap the right parking brake cable into the upper suspension arm retainer, reinstall the rear stabilizer bar if applicable, and connect the height sensor connector link to the upper control arm. Install the wheels and lug nuts, lower the vehicle, and tighten the lug nuts to the specified torque. Before driving a vehicle equipped with air suspension, turn the air suspension switch to On, start the engine, and allow the compressor to inflate the air suspension springs (they deflate automatically when the rear of the vehicle is raised).