Envoy 4WD V8-5.3L VIN M (2005)
Seals and Gaskets: Service and Repair
Manual Shift Shaft Seal Replacement
Manual Shift Shaft Seal Replacement
Tools Required
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J43911 Selector Shaft Seal Remover
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J43909 Selector Shaft Seal Installer
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Remove the Park/Neutral Position (PNP) Switch.
3. Be sure that the jackscrew for J43911 is backed off and will not interfere with installation of the removal tool. Slide the seal remover tool over the
selector shaft (2) with the threaded end of the tool towards the seal.
4. Rotate the removal tool so that the threads on the end of the tool engage the steel shell (1) of the seal. Use a wrench to be sure that the removal tool
is firmly attached to the seal shell.
5. Rotate the jackscrew in the clockwise direction to remove the seal from the bore. Discard the seal that was removed.
Installation Procedure
1. Carefully slide a new selector shaft seal (1) over the selector shaft (2) with the wide face of the steel case facing outward. Position the seal so that
it is starting to enter the seal bore.
2. Obtain J43909 and remove the inner sleeve so that the tool will slide over the selector shaft.
3. Slide the J43909 into position so that the end of the tool contacts the seal being installed. Use a mallet to strike the J43909 and drive the new seal
