Case Extension & Differential Carrier
WARNING: This page does not describe the selected car, but rather 43 other vehicles, including the 2003 Pontiac Montana, 2003 Pontiac Grand Prix, 2003 Pontiac Bonneville, 2003 Pontiac Aztek, and 2003 Oldsmobile Silhouette. However, it is still accessible from the selected car via links, so may be relevant.
Remove case extension bolts. Remove case extension and remove seal. Remove differential carrier thrust washer and thrust bearing. See Figure. Remove differential carrier assembly. Remove differential sun gear shaft. Remove thrust bearing from differential carrier sun gear. Bearing may be stuck to carrier assembly. Remove differential carrier (final drive) sun gear. Remove parking gear. Remove thrust bearing from differential carrier internal gear. See Fig 1.