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.
Assembly Procedure
2003 Chevrolet TrailBlazer 4.2 S, 4WDSECTION Assembly 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.
Important: Install a new O-ring seal each time the thrust support assembly is removed from the steering gear.
- Lubricate the new O-ring seal (3).
- Install the new O-ring seal (3) on the thrust support assembly (2).
- Install the thrust support assembly (2).
- Connect the adjuster nut assembly (2) to the steering gear housing (1) using J 42882 .
- Install the coupling shield retainer and the lock nut (1) to the adjuster nut assembly.
- Refer to WORM THRUST BEARING PRELOAD ADJUSTMENT - OFF VEHICLE (700 GEAR) to adjust the thrust bearing preload.
- Hold the adjuster nut assembly in position to maintain alignment of the marks.NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
- Tighten the coupling shield retainer and the lock nut using J 43435
and a torque wrench.
Tighten
Tighten the retainer and the lock nut to 109 N.m (80 lb ft).
RENDER: 1.0x
NO RELATED
Recommended Tools & Savings
Use the Manual With the Right Hardware
Pair factory procedures with proven DIY tools so the instructions are easier to execute.
Affiliate disclosure: We may earn a commission at no extra cost to you.
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.