GM Service Manual Online
For 1990-2009 cars only
Makes 🢒 GMC_Truck 🢒 1999 🢒 Savana 🢒 Suspension 🢒 Front Suspension 🢒 Lower Control Arm Replacement

Removal Procedure

    Object Number: 160827 Size: SH
  1. Raise the vehicle. Support the lower control arm with safety stands or a floor jack..

    2. Caution: Floor jack must remain under the lower control arm during removal and installation to retain the lower control arm in position. Failure to do so could result in personal injury.

  2. Remove the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  3. Remove the front brake caliper. Refer to Brake Caliper Replacement in Disc Brakes.
  4. Remove the hub and rotor. Refer to Front Wheel Hub, Bearing, and Seal Replacement in Front Suspension.
  5. Remove the lower ball joint from the Steering Knuckle. Refer to Lower Control Arm Ball Joint Replacement in Front Suspension.
  6. Remove the coil spring. Refer to Front Coil Springs Replacement in Front Suspension.

    7. Object Number: 160821 Size: SH
  7. Remove the nuts and the bolts from the lower control arm pivot joints.
  8. Remove the lower control arm.

Installation Procedure

    Object Number: 160821 Size: SH

    Notice: 

       • Avoid pounding the bolts or any excessive force when installing the control arm to the frame.
       • Always inspect the frame attachment hole for elongation greater than 1 mm clearance around the bolt in any direction at any location. If 1 mm gap or other evidence of damage is detected, repair the frame as required. Refer to Structural Body Repair and Dimensions.

  1. Install the coil spring. Refer to Front Coil Springs Replacement in Front Suspension.

    2. Important: The pivot bolts must be installed in the proper direction.

    The nuts must be tightened with the control arm at Z height. Refer to Trim Height Inspection in Suspension General Diagnosis.

  2. Install the new bolts and the nuts that retain the lower control arm to the frame.

    3. Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.

    Tighten
    Tighten the nuts to 155 N·m (115 lb ft).

  3. Install the lower ball joint to the steering knuckle. Refer to Lower Control Arm Ball Joint Replacement in Front Suspension.
  4. Install the hub and rotor. Refer to Front Wheel Hub, Bearing, and Seal Replacement in Front Suspension.
  5. Install the front brake caliper. Refer to Brake Caliper Replacement in Disc brakes.
  6. Install the tire and wheel. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  7. Remove the safety stands.
  8. Lower the vehicle.