Ford F43Z-18125-A Shock Absorber Assembly

On models with air suspension, turn off the air suspension switch and disconnect the height sensor connector link before allowing the rear suspension to hang past its normal point of full rebound. Raise the rear of the vehicle and support it securely on jackstands. If the vehicle is a pre-1992 model with automatic leveling rear suspension and coil springs, allow the rear axle to hang free until the shock absorbers are finished venting through the compressor. Support the rear axle with a floor jack to prevent it from dropping when the shock absorber is disconnected. If removing an air-assisted shock absorber, detach the air line.

The strut is separated from the steering knuckle by removing the strut to steering knuckle nuts and bolts.

Remove the shock-to-lower control arm nut and bolt, then separate the shock absorber/coil spring assembly from the spindle.

For 2003 and later models, remove the three shock absorber upper mounting nuts, the brake caliper, and the brake disc. Additionally, remove the upper and lower stabilizer bar links. Remove the upper balljoint nut and separate the control arm from the steering knuckle. Finally, remove the lower mounting bolt and the shock absorber/coil spring assembly from the front end of the vehicle.

The bolt and nut need to be installed and tightened securely.

Ensure that all air is expelled from the new shock absorber by extending and compressing it several times before placing the inner washer and rubber insulator on the shock piston rod. Insert the rod through the upper mounting hole in the frame, attach the outer insulator, washer, and a new stud retaining nut on the upper side of the frame, making sure the insulator "pilots" engage properly in the frame attaching holes. Tighten the nut to the specified torque.

If fluid leakage is evident, replace the shock absorbers as a set.