K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
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Washer (243).
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Stub shaft oil seal (242).
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Adjuster plug seal (239)
4.
Steering valve assembly (250) and stub shaft o-ring seal (249).
Important
Do not remove the worm shaft (248) and thrust bearing assembly (246, 247) when removing the steering valve assembly. Removing the worm shaft will
result in one or more balls (213) dropping out of the steering worm circuit. Loss of any balls in the circuit will require a complete rebuilding of the
steering rack and worm assembly.
Install (Figure 1)
1.
New stub shaft o-ring seal (249).
Important
The valve body assembly, rings and all seals should be lubricated with power steering fluid before assembly.
2.
New steering valve assembly (250) (Figure 2).
Important
Note that pin (A) on the worm gear (248) lines up with slot (B) in the steering valve assembly (250).
3.
Stub shaft oil seal (242) to adjuster plug (240) using J 8524-1 and J 7079-2.
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Be sure adjuster plug bearing (241) is seated in adjuster plug (240). Use J 8524-1 and J 7079-2 if necessary.
4.
New adjuster plug seal (239) to the adjuster plug assembly (240).
5.
Adjuster plug assembly (240) using J 7624.
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Protect the stub shaft oil seal (242) from damage by placing J 29810 over the splined end of stub shaft (251) before installing the adjuster
plug (240).
