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 INSTRUCTIONSTORSION BAR 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 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.

Install the torsion bars to the lower control arm.

Fig 1: Install Torsion Bars
Courtesy of GENERAL MOTORS CORP.
Install the torsion bar crossmember.
NOTE: Refer to FASTENER NOTICE .
Install the torsion bar crossmember bolts (1) to the weld nuts (4).
Tighten

Tighten the bolt to 95 N.m (70 lb ft).

Fig 2: Torsion Bar Crossmember Bolts & Weld Nuts

Courtesy of GENERAL MOTORS CORP.

While supporting the adjustment arm, slide the torsion bar rearward until the torsion bar fully engages the adjustment arm.
Install the J 360202 to the adjustment arm and the crossmember.
Increase the tension on the adjustment arm in order to load the torsion bar.

Fig 3: Install J 36202 To Adjustment Arm & Crossmember
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.