GM 15217439
Lower Control Arm, Passenger Side

The lower Control Arm replacement process begins by lifting the vehicle onto a hoist while removing both tire and wheel units. Begin stabilizer shaft replacement by detaching the link if your vehicle is equipped with one. The engine mount strut needs two retaining bolts removed before pulling out the engine mount strut. Start by removing the front suspension support brace mounting bolts followed by the front suspension support brace for the left lower Control Arm installation. Begin by taking out the Ball Joint from the Steering Knuckle and disconnecting the wiring harness from the lower Control Arm and removing the front and rear lower Control Arm mounting bolts to extract the lower Control Arm from the front suspension crossmember. Start by positioning the Control Arm into the front suspension crossmember then tighten the lower Control Arm mounting bolts at front and rear locations by hand. Reinstall the lower Control Arm wiring harness then connect the Ball Joint stud to the Steering Knuckle. Proceed by installing the stabilizer shaft link then the engine mount strut for the right lower Control Arm before securing the retaining bolts at 100 n.m (74 lb ft). The front suspension support brace and its mounting bolts (2, 4) require installation to a torque of 72 n.m (53 lb ft). Secure the tire and wheel assembly to the vehicle then drop it to the ground before torqueing the front bushing Control Arm Bolt to 100 n.m plus 90 degrees rotation (74 lb ft) and tightening the rear vertical bushing Control Arm Bolt to 170 n.m (125 lb ft). Complete the inspection by checking the wheel alignment of the front.