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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1528 (REAR SUSPENSION SYSTEM)REPAIR INSTRUCTIONSKNUCKLE REPLACEMENTINSTALLATION PROCEDURE
2003 Chevrolet TrailBlazer 4.2 S, 4WD

Installation Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Installation Procedure
WARNING: This page is about a different car, the 2004 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Upper Control Arm, Lower Control Arm Ball Joint Stud & Suspension Knuckle
    GM65319Courtesy of GENERAL MOTORS CORP.
  1. Install the suspension knuckle (2) to the lower control arm (4) ball joint stud. Refer to Rear Axle Lower Control Arm Replacement .
  2. Install the suspension knuckle ball joint stud (2) to the upper control arm (1). Refer to Rear Axle Upper Control Arm Replacement .
  3. Install the spindle nut, washer and retainer. Refer to Wheel Drive Shaft Replacement in Wheel Drive Shafts.
    4. Fig 2: Outer Tie Rod End, Brake Rotor & Caliper
    GM65331Courtesy of GENERAL MOTORS CORP.
  4. Install the outer tie rod end to the suspension knuckle. Refer to Tie Rod Replacement (Outer End)  or Tie Rod Replacement (Suspension Link) .
  5. Install the brake rotor and caliper. Refer to Brake Caliper Bracket Replacement - Rear and Brake Rotor Replacement - Front in Disc Brakes.
    6. Fig 3: View Of Rear Wheel Speed Sensor Harness Connector
    GM581404Courtesy of GENERAL MOTORS CORP.
  6. Connect the wheel speed sensor electrical connector.
    7. Fig 4: Shock Absorber ESC Harness Connector
    GM581266Courtesy of GENERAL MOTORS CORP.
  7. Connect the shock absorber solenoid electrical connector, if equipped.
    8. Fig 5: ESC Position Sensor Links
    GM583226Courtesy of GENERAL MOTORS CORP.
  8. Connect the ESC sensor link, if equipped.
  9. Install the tire and wheel assembly. Refer to Tire and Wheel Removal and Installation in Tires and Wheels.
  10. Lower the vehicle.
  11. Perform a rear wheel alignment. Refer to Measuring Wheel Alignment in Wheel Alignment.
RENDER: 1.0x

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.