Chevrolet 15856323 Stud Kit, Front Lower Control Arm Ball

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To check the condition of the balljoint, start by raising the front of the vehicle and supporting it securely on jackstands. Apply the parking brake and block the rear wheels to prevent the vehicle from rolling. Then, place a large prybar under the balljoint and try to pry it up while feeling for any movement between the balljoint and steering knuckle. Next, pry between the control arm and steering knuckle and try to lever the control arm down while checking for movement. If any movement is detected in either check, it indicates a worn balljoint. Another way to check is to have an assistant grasp the tire at the top and bottom and move the top of the tire in and out while touching the balljoint stud nut. If any looseness is felt, it suggests a worn balljoint stud or a widened hole in the steering knuckle boss, in which case both the balljoint and steering knuckle should be replaced. To replace the balljoint, start by raising the vehicle and supporting it on jackstands. Remove the front wheel and control arm. Then, drill out the rivets securing the old balljoint to the control arm, clean the control arm, and install the new balljoint using the supplied fasteners. Tighten the balljoint fasteners to the specified torque. Finally, reinstall the control arm, wheel, and lug nuts, lower the vehicle, and tighten the lug nuts to the proper torque. It is recommended to have the front wheel alignment checked and adjusted if necessary after completing this task.