K 3500 Truck 4WD V8-6.0L VIN U (2002)
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J 21426 Extension Housing Seal Installer
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J 36850 Transjel 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. Remove the case extension housing rear oil seal. Use a flat bladed tool and carefully pry the seal from the housing.
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 21426 with a soft faced mallet to install the seal.
3. Install the seal to the extension housing.
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.
