Mercury F4ZZ-3V050-A Kit - Steering Gear Tie Rod Repair

On 1980 and later models (pre-1992 models), a visual inspection is performed by checking the projecting checking surface of the lower balljoint's round boss into which the grease fitting is threaded. Axial and radial movement is checked, and if they exceed specified limits, the balljoints should be replaced.

Raise the vehicle, remove the wheel, and support the spring load with a floor jack under the lower control arm. Remove the pinch bolt and nut from the upper balljoint stud. Mark the adjustment cam positions for caster and camber. Remove the nuts attaching the upper balljoint to the upper control arm. Remove the upper balljoint assembly.

Replacement involves changing the upper control arm.