Express 1500 RWD V8-5.3L (2008)
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 J 43909 and remove the inner sleeve so that the tool will slide over the selector shaft.
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. Refer to Park/Neutral Position Switch Replacement (See: Sensors and Switches - A/T/Transmission Position
Switch/Sensor/Service and Repair/4L80-E/4L85-E - Automatic Transmission) .
Propeller Shaft Front Slip Yoke Oil Seal Replacement
Propeller Shaft Front Slip Yoke Oil Seal Replacement
Tools Required
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J 38869 Rear Extension Seal Installer
*
J 6125-1B Slide Hammer Adapter
*
J 23129 Universal Seal Remover
*
J 36850 Transjel(R)
Removal Procedure
1. Raise the vehicle. Refer to Lifting and Jacking the Vehicle .
2. Place a drain pan under the vehicle.
3. Remove the propeller shaft. Refer to One-Piece Propeller Shaft Replacement (See: Drive/Propeller Shafts, Bearings and Joints/Drive/Propeller
Shaft/Service and Repair/One-Piece Propeller Shaft Replacement) or Two-Piece Propeller Shaft Replacement (See: Drive/Propeller Shafts,
Bearings and Joints/Drive/Propeller Shaft/Service and Repair/Two-Piece Propeller Shaft Replacement) .
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. Refer to Case Extension Assembly Replacement (See:
Extension Housing/Service and Repair/4L80-E/4L85-E - Automatic Transmission) .
Installation Procedure