Reaction Sun Gear and Drum Assemble for Pontiac Montana Ext. 2004

1. Inspect the reaction sun gear and drum assembly (678) for the following:

•	Worn or scored bushings

•	Damaged reaction sun gear teeth

•	The band apply area of the drum for discoloration or wear

•	The welds connecting the sun gear to the drum for voids or cracks

•	A worn or damaged 1-2 support outer race




2. Install the reaction sun gear and drum assembly (678) into the case.
3. Check that the lugs engage with the 1-2 support roller clutch inner race.