GMC 89040241 Joint Kit,Front Upper Control Arm Ball

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Inspect the control arm balljoints for looseness whenever either is separated by attempting to turn the ballstud in its socket with your fingers; if loose, replace the balljoint. To check the lower balljoints with the suspension assembled, first loosen the wheel lug nuts, raise the vehicle, and support it securely on jackstands under the frame rails before removing the wheels. Clean the balljoints and inspect the seals for cuts and tears; if a seal is damaged, replace the balljoint. Assess the balljoints for wear by moving each control arm up and down in relation to the steering knuckle with a prybar to ensure there is no play; replace any balljoint that exhibits significant play. For replacement, remove both upper and lower balljoints by following the procedure for control arm removal without taking out the control arm mounting bolts. Separate the balljoint from the steering knuckle and remove the bolts securing the balljoint to the control arm. Install the new balljoint, tightening the bolts to the specified torque, and ensure to use new bolts and nuts. Complete the installation by reversing the removal procedure and have the front end alignment checked and adjusted if necessary.

Inspect the control arm balljoints for looseness whenever either is separated by attempting to turn the ballstud in its socket with your fingers; if loose, replace the balljoint. To check the lower balljoints with the suspension assembled, first loosen the wheel lug nuts, raise the vehicle, and support it securely on jackstands under the frame rails before removing the wheels. Clean the balljoints and inspect the seals for cuts and tears; if a seal is damaged, replace the balljoint. Assess the balljoints for wear by moving each control arm up and down in relation to the steering knuckle with a prybar to ensure there is no play; replace any balljoint that exhibits significant play. For replacement, remove both upper and lower balljoints by following the procedure for control arm removal without taking out the control arm mounting bolts. Separate the balljoint from the steering knuckle and remove the bolts securing the balljoint to the control arm. Install the new balljoint, tightening the bolts to the specified torque, and ensure to use new bolts and nuts. Complete the installation by reversing the removal procedure and have the front end alignment checked and adjusted if necessary.