Silverado 1500 4WD V8-5.3L (2007)
Seals and Gaskets: Service and Repair
Allison - Automatic Transmission
Manual Shift Shaft Seal Replacement
Manual Shift Shaft Seal Replacement
Tools Required
*
J 43911 Manual Shift Shaft Seal Remover
*
J 43909 Manual Shift Shaft Seal Installer
Removal Procedure
1. Be sure that the jackscrew for J 43911 is backed off and will not interfere with installation of the removal tool. Slide the seal remover tool over the
manual shift shaft (2) with the threaded end of the tool towards the seal.
2. 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.
3. 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 manual shift shaft seal (1) over the manual shift shaft (2) with the wide face of the steel case facing outward. Position so that
the seal is starting to enter the seal bore.
