Safety Warning

DIY auto repair can cause serious injury, fire, or vehicle damage. These guides are for informational purposes only. Always follow OEM torque specs, wear PPE, and consult a certified mechanic if you are unsure. You are solely responsible for your safety.

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HOMESERVICE MANUALSCHEVROLET2003TRAILBLAZER 4.2 S, 4WDREPAIR AND DIAGNOSISEXTERNAL PAGESDIFFERENT CARSECTION 1557 (FRONT SUSPENSION SYSTEM)REPAIR INSTRUCTIONSLOWER CONTROL ARM REPLACEMENT (4WD)REMOVAL PROCEDURE

2003 Chevrolet TrailBlazer 4.2 S, 4WD

Removal Procedure

2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Removal Procedure

WARNING: This page is about a different car, the 2003 GMC Sierra, 2003 GMC Cab & Chassis Sierra, 2003 Chevrolet Silverado, and 2003 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.

Raise and support the vehicle. Refer to JACKING AND LIFTING .
Remove the tire and wheel. Refer to TIRE AND WHEEL REMOVAL AND INSTALLATION .
Remove the stabilizer shaft links from the lower control arm. Refer to Stabilizer Shaft Replacement .
Remove the shock absorber lower nut and the bolt. Refer to Shock Absorber Replacement (4WD) or Shock Absorber Replacement (RWD) .

Fig 1: Remove Lower Ball Joint Retaining Nut
Courtesy of GENERAL MOTORS CORP.
Remove the torsion bars. Refer to Torsion Bar Replacement .
Remove the wheel drive shaft. Refer to WHEEL DRIVE SHAFT REPLACEMENT .
Remove the lower ball joint retaining nut.
Disconnect the lower ball joint stud from the steering knuckle using J 43631 and J 45851.

Fig 2: Disconnect Lower Ball Joint Stud
Courtesy of GENERAL MOTORS CORP.
Remove the lower control arm nuts and the 15-series washers.
Remove the lower control arm bolts.

Fig 3: Remove Lower Control Arm Nuts, Bolts & 15-Series Washer
Courtesy of GENERAL MOTORS CORP.
Remove the lower control arm nuts and the 25/35-series washers.
Remove the lower control arm bolts.
Remove the lower control arm.

Fig 4: Remove Lower Control Arm, Nuts, Bolts & 25/35-Series Washers
Courtesy of GENERAL MOTORS CORP.

RENDER: 1.0x

NO RELATED

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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.