Ford 9L3Z-3078-A Front Suspension Arm Assembly

SUVs have a rear suspension comprising coil springs, shock absorbers, upper and lower suspension arms, a stabilizer bar, and a track bar. Some models may feature air suspension systems known as Suspension Load Leveling Control or Vehicle Dynamic Suspension.

The wheel speed sensor needs to be removed from the steering knuckle.

Loosen the wheel lug nuts, raise the front of the vehicle, and support it securely on jackstands.

To disconnect the upper control arm from the steering knuckle, remove the cotter pin from the balljoint castle nut, loosen the nut a few turns (without removing it), use a small puller to break the balljoint loose from the knuckle, and then remove the nut. Afterward, remove the upper control arm pivot bolts and nuts. During this process, inspect the pivot bolt bushings for wear. If they are worn, the control arm needs replacement. Also, inspect the upper balljoint seal. If it's leaking, replace the control arm, as the balljoint itself is not serviceable.