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 913 (FRONT SUSPENSION SYSTEM)REPAIR INSTRUCTIONSUPPER CONTROL ARM BUSHINGS REPLACEMENT (RWD)INSTALLATION 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 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.

Install the upper control arm shaft to the upper control arm.
Install the control arm bushings to the upper control arm. Use the J 22269-01 and a short piece of pipe that is the same outer diameter as the rubber bushing.

Fig 1: Installing Upper Control Arm Shaft To Upper Control Arm
Courtesy of GENERAL MOTORS CORP.
Tighten J 22269-01 until the bushing is positioned on the shaft and the upper control arm as shown. The measurement should be 12.8-13.8 mm (0.48-0.52 in) on both ends.

Fig 2: Upper Control Arm Bushings
Courtesy of GENERAL MOTORS CORP.
Install the washers and the nuts to the upper control arm shaft. Do not tighten the nuts.
Remove the upper control arm from the vise.
Install the upper control arm to the vehicle. Refer to UPPER CONTROL ARM REPLACEMENT (RWD) or UPPER CONTROL ARM REPLACEMENT (4WD) .

Fig 3: Installing Washers & Nuts To Upper Control Arm Shaft
Courtesy of GENERAL MOTORS CORP.

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.