GM Service Manual Online
For 1990-2009 cars only

Front Lower Control Arm Bushing Replacement Vertical

Tools Required

    • J 21474-01 Control Arm Bushing Set
       - J 21474-27 1/2 Inch Puller Bolt Thrust Bearing
       - J 21474-2 Bushing Installer Remover
       - J 21474-4 Nut
       - J 21474-13 Control Arm Bushing Installer
    • J 23444-A High Pressure Lubricant
    • J 34126 Driven Sprocket Support Bearing Installer
    • J 35379 Front Knuckle Support

Removal Procedure

  1. Remove the lower control arm. Refer to Lower Control Arm Replacement .
  2. Secure the lower control arm in a vice.

  3. Object Number: 381812  Size: SH
  4. Mark the lower control arm along the flat edge of the bushing flange.

  5. Object Number: 381816  Size: MH

    Important: Apply J 23444-A or equivalent to the threads of J 21474-27 .

  6. Assemble the following bushing removal tools as shown:
  7. 4.1. J 21474-27
    4.2. J 21474-13
    4.3. J 34126
    4.4. J 35379
    4.5. J 21474-2
    4.6. J 21474-4
  8. Tighten J 21474-4 .
  9. Disassemble the bushing removal tools.

Installation Procedure


    Object Number: 381889  Size: SH

    Important: You MUST install the lower control arm vertical bushing in the same position in order to maintain the original vehicle ride, handling, and road feel.

  1. Align the flat edge of the bushing flange to the mark in the control arm (1). Ensure that the flat edge of the bushing flange is 30 degrees (2) from the centerline of the lower control arm. Ensure that the thin slot in the bushing is facing outboard.
  2. Insert the bushing into the control arm.

  3. Object Number: 381815  Size: MH

    Important: Apply J 23444-A or equivalent to the threads of J 21474-27 .

  4. Assemble the following bushing installation tools as shown:
  5. 3.1. J 21474-27
    3.2. J 21474-13
    3.3. J 21474-5
    3.4. J 21474-4
  6. Tighten J 21474-4 .
  7. Disassemble the bushing installation tools.
  8. Install the lower control arm. Refer to Lower Control Arm Replacement .

Front Lower Control Arm Bushing Replacement Horizontal

Tools Required

    • J 21474-01 Control Arm Bushing Service Set
    • J 21474-5 Control Arm Bushing Receiver

Removal Procedure

  1. Remove the lower control arm. Refer to Lower Control Arm Replacement .
  2. Secure the lower control arm in a vise.

  3. Object Number: 1171032  Size: SH

    Important: Use a 1/2 x 20 in standard thread nut with the puller bolt.

  4. Assemble the bushing removal tools as indicated:
  5. 3.1. The nut (1)
    3.2. The J 21474-01 washer (2)
    3.3. The J 21474-01 bearing (3)
    3.4. The J 21474-5 (4)
    3.5. The J 21474-01 puller bolt (5)
  6. Tighten the puller bolt (5) until the bushing is removed.
  7. Disassemble the J 21474-01 and J 21474-5 .

Installation Procedure

  1. Lubricate the bushing with liquid hand soap or equivalent.

  2. Object Number: 1171035  Size: SH

    Important: Use a 1/2 x 20 in standard thread nut with the puller bolt.

  3. Assemble the following bushing installation tools as indicated :
  4. 2.1. The nut (1)
    2.2. The J 21474-01 washer (2)
    2.3. The J 21474-01 bearing (3)
    2.4. The J 21474-5 (4)
    2.5. The J 21474-01 puller bolt (5)
  5. Tighten the puller bolt (5) until the bushing is installed into the control arm.
  6. Disassemble the J 21474-01 and J 21474-5 .
  7. Remove the control arm from the vice.
  8. Install the lower control arm. Refer to Lower Control Arm Replacement .