TrailBlazer 2WD L6-4.2L VIN S (2003)
1. Install the upper ball joint to steering knuckle using J9519-E, J21474-01, and J45117.
2. Install the upper ball joint retaining clip.
3. Install the steering knuckle with wheel hub attached.
4. Install the tire and wheel.
5. Lower the vehicle.
6. Check the front wheel alignment.