Sierra 1500 4WD V8-6.0L VIN U (2006)
Seals and Gaskets: Service and Repair
NV 4500 - Manual Transmission
Transmission Housing Oil Seal Replacement - Front
Removal Procedure
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Tools Required
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J 38801 Input Shaft Seal Installer
1. Remove the transmission.
2. Remove the clutch actuator cylinder bolts.
3. Remove the clutch actuator cylinder.
4. Remove the input shaft bearing retainer bolts. Remove the input shaft bearing retainer. Screw 2 of the removed bolts into the threaded holes in the
retainer in order to remove the retainer.
5. Using a hammer and a punch, remove the transmission housing front oil seal from the input shaft bearing retainer.
6. Remove the old gasket material from the input shaft bearing retainer.
Installation Procedure
Important: Inspect the input shaft bearing retainer for any nicks or cracks that may result in a leak. Replace as necessary.