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 MANUALSCHEVROLET1998ASTRO VAN 2WD V6-4.3L VIN WREPAIR AND DIAGNOSISSTEERING AND SUSPENSIONSTEERINGSTEERING GEARSERVICE AND REPAIRPOWER STEERING GEAR UNIT REPAIRTHRUST SUPPORT ASSEMBLY
1998 Chevrolet Astro Van 2WD V6-4.3L VIN W
Thrust Support Assembly
1998 Chevrolet Astro Van 2WD V6-4.3L VIN WSECTION Thrust Support Assembly
Power Steering Gear (708):
Power Steering Gear - Legend (708):
^ Tools Required:
- J 42882 Adjuster Nut Socket
- J 6222-A Shaft Seal Protector
- Or Equivalent
REMOVE OR DISCONNECT
- Steering gear from vehicle.
NOTICE: Tool J 6222-A must be placed over the stub shaft end before removing or replaceing the adjuster nut assembly and thrust support assembly.
Loosening Coupling Shield Ret. And Lock Nut:
DISASSEMBLE
1. Coupling shield ret. and lock nut (48) from adjuster nut (65).
Replacing Adjuster Nut Assembly:
2. Adjuster nut (65) from housing (20) using J 42882.
3. Thrust support assembly (49) and O-ring seals (56).
4. O-ring seal (56)
ASSEMBLE
NOTICE: Install a new O-ring (56) each time the thrust support assembly is removed from the gear.
- Lubricate O-ring seal (56).
1. Install O-ring seal (56).
2. Thrust support assembly (49).
3. Adjuster nut (65) to housing (20) using J 42882.
4. Coupling shield ret. and lock nut (48) to adjuster nut (65)
Adjust
- Thrust bearing preload.
5. Install coupling shield ret. and lock nut (48), and using a drift in a notch, tighten securely.
- Hold adjuster nut (65) to maintain alignment of the marks.
Adjust
- Pitman shaft over-center sector.
INSTALL OR CONNECT
- Power steering gear.
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.