Avalanche 2500 4WD V8-8.1L VIN G (2003)
5. Thread the center bolt of J43320 into the crankshaft to remove the seal.
6. Remove the guide pins from the crankshaft
Installation Procedure
1. Make sure the crankshaft is free of grit, loose rust, and burrs. Correct as needed.
2. Apply a very light film of oil onto the crankshaft sealing surface. DO NOT apply oil to the sealing surface of the engine block.
3. Install the seal onto J42849.
4. Position the J42849 against the crankshaft. Thread the attaching screws into the tapped holes in the crankshaft.
5. Tighten the screws securely with a screwdriver in order to ensure that the seal is installed squarely over the crankshaft.
6. Rotate the center nut until the J42849 bottoms.
7. Remove the J42849.
8. Install the flywheel.