Mercury 7W7Z-18124-D Shock Absorber Assembly

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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.

Raise the vehicle, support it securely on jackstands, and check the shock absorbers for evidence of fluid leakage. A light film of fluid is generally not a concern. If leakage is noted, replace the shocks as a set.

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.

Allow the rear axle to hang freely until the shock absorbers finish venting through the compressor. Support the rear axle with a floor jack to prevent it from dropping when the shock absorbers are disconnected.

If any components of the assembly are worn or damaged, have the unit serviced by a qualified repair shop, or replace it with a rebuilt or new unit.

Raise the vehicle, support it securely on jackstands, and check the shock absorbers for evidence of fluid leakage. A light film of fluid is generally not a concern. If leakage is noted, replace the shocks as a set.