Sierra Classic 2500 4WD V8-6.0L (2007)
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. Refer to One-Piece Propeller Shaft Replacement or Two-Piece Propeller Shaft Replacement.
5. Remove the drain pan and lower the vehicle.
6. Fill the transmission to the proper level with Dexron(r) III transmission fluid. Refer to Transmission Fluid Check.