K 2500 Truck 4WD V8-379 6.2L DSL VIN C FI (1989)
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Retaining ring (244) using J 4245 or equivalent snap ring pliers.
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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
It is not necessary to remove the worm shaft (248) and thrust bearing assembly (246, 247) when removing the steering valve assembly. If the worm
shaft is removed it will be necessary to remove the rack piston plug (219) to reinstall the worm shaft.
INSTALL (Figure 1)
1.
New stub shaft o-ring seal (249).
Figure 2 - Worm and Valve Assembly Bearing
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). Adjuster plug assembly (240) using J 7624. Place J 29810 over the splined end of
stub shaft (251) before installing the adjuster plug (240). This will protect the stub shaft oil seal (242) from damage.
