Sierra 1500 4WD V8-5.3L VIN T (2004)
3. Slide the J 43909 into position so that the end of the tool contacts the seal being installed. Use a mallet to strike the J 43909 and drive the new seal
into the seal bore until it is seated at the bottom of the bore.
4. Install the PNP switch.
5. Fill the transmission to the proper level with DEXRON® III transmission fluid.
Transmission Extension Housing Rear Oil Seal Replacement
Transmission Extension Housing Rear Oil Seal Replacement
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Tools Required
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J 41505 Output Shaft Seal Installer
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J 6125-1BSlide Hammer
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J 23129 Universal Seal Remover
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J 36850 Transmission Assembly Lubricant
Removal Procedure
1. Raise the vehicle. Refer to Vehicle Lifting.
2. Place a drain pan under the vehicle.
3. Remove the propeller shaft.
4. Using the J 6125-1B (1) and the J 23129 (2), remove the output shaft seal (3) from the extension housing (4).
5. Inspect the case extension housing for damage. Replace the extension housing if necessary.
Installation Procedure
1. Lubricate the inside diameter of the new seal with J 36850.
2. Use the J 41505 (1) with a soft faced mallet to install the seal (2).
3. Install the seal (2) to the extension housing (3).
4. Install the propeller shaft.
5. Remove the drain pan and lower the vehicle.
6. Fill the transmission to the proper level with Dexron® III transmission fluid.
