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 WarningSteering Wheel Straight and Column Locked Caution
Caution: With wheels of the vehicle facing straight ahead, secure
the steering wheel utilizing steering column anti-rotation pin, steering column
lock, or a strap to prevent rotation. Locking of the steering column will prevent
damage and a possible malfunction of the SIR system. The ste ...
Special Tools
Illustration
Tool Number/Description
CH 9127-E
SA 9127-E
Fuel Pressure/Flow Adapter
CH 9182-E
SA 9182-E
Electronic Fuel Injector Tester
...
Manual Shift Shaft Seal Removal
Manual Shift Shaft Seal Removal
Callout
Component Name
1
Manual Shift Shaft Seal
Note: Use the DT-45201 seal remover to remove the seal
to prevent damage to the case surface.
Special Tools
DT-452 ...