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 WarningFuel Pump Flow Control Module Replacement
Fuel Pump Flow Control Module Replacement
Callout
Component Name
Preliminary Procedures
Disconnect the battery negative cable. Refer to Battery Negative
Cable Disconnection and Connection.
Remove the right rear compartmen ...
Lock Cylinder Coding - Ignition
The ignition lock cylinder uses 8 key cut positions, 1?E. The ignition cylinder
tumblers (3) are located on alternate sides of the cylinder (5). They are not snap-in
and are not self-retaining. It follows the key code with the first tumbler being
the first depth of the ke ...
Differential Carrier Removal (6T40/45/50)
Differential Carrier Removal
Callout
Component Name
1
Front Differential Carrier Bearing Assembly
2
Differential Carrier Assembly
3
Final Drive Sun Gear
...