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 1236 (FRONT SUSPENSION SYSTEM)REPAIR INSTRUCTIONSLOWER CONTROL ARM BUSHINGS REPLACEMENT (VERTICAL)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 Pontiac Grand Prix. However, it is still accessible from the selected car via links, so may be relevant.
- Remove the lower control arm. Refer to Lower Control Arm Replacement .
- Secure the lower control arm in a vice.
- Mark the lower control arm along the flat edge of the bushing flange.
Important: Apply J 23444-A (or equivalent high pressure lubricant) to the threads of J 21474-27.
- Assemble the following bushing removal tools as shown:
- 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
- Tighten J 21474-4.
- Disassemble the bushing removal tools.
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.