Mercury F6AZ-3084-AA Front Suspension Arm Assembly

Remove the cotter pin from the balljoint stud. Loosen the castle nut on the stud. Use sharp raps on the steering knuckle near the stud to release pressure and loosen the stud. Remove the balljoint stud nut. Lower the control arm by removing its mounting bolts.

After removing the upper control arm assembly, you should inspect the control arm bushings for cracks and tears. If they're damaged or worn, you should take the control arm to an automotive machine shop to have new bushings installed.

Position a floor jack under the lower control arm. Remove the pinch bolt and nut retaining the upper balljoint stud to the steering knuckle. Use a prybar to spread the slot in the knuckle and separate the balljoint stud. Remove the upper control arm retaining bolts and the upper control arm assembly.

Secure the lower control arm with mounting bolts (not fully tightened initially). Use a spring compressor for 2002 and earlier models and properly seat the spring. Insert the balljoint stud into the steering knuckle. Tighten the castle nut and install a new cotter pin. On 2003 and later models, install the shock absorber/coil spring assembly. For 1988 through 1991 models, attach the stabilizer bar.