For service and parts needs, visit your dealer. You will receive genuine GM parts and GM-trained and supported service people.
Genuine GM parts have one of these marks:

California Proposition 65 WarningInput, Reaction, and Output Carrier Assemble (Gen 2)
Input, Reaction, and Output Carrier Assemble
Callout
Component Name
1
3? Reverse and 4?? Clutch Housing Assembly
2
Reaction Carrier Sun Gear Thrust Bearing
3
Reacti ...
Low and Reverse and 1-2-3-4 Clutch Housing, and 1-2-3-4 Clutch Plate Installation
(6T30)
Low and Reverse and 1-2-3-4 Clutch Housing, and 1-2-3-4 Clutch Plate
Installation
Callout
Component Name
1
Low and Reverse and 1??? Clutch Housing
Note: The longer legs face the bottom of the case and the
...
Engine Flywheel Installation
Special Tools
EN-652 Flywheel Holder
EN-45059 Torque Angle Sensor Kit
For equivalent regional tools, refer to Special Tools.
Clean the thread in the crankshaft.
Install the crankshaft position reluctor ring (1).
Install the flywheel (2).
Install the EN-6 ...