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:

Vehicle Care
California Proposition
65 WarningStarter Replacement (LEA) Starting System Starter
Removal ProcedureDisconnect the negative battery cable. Refer toBattery Negative Cable Disconnection and Connection.Remove the power vacuum brake booster pump. Refer toPower Brake Booster Pump ReplacementRaise and support the vehicle. Refer toLifting and Jacking the Vehicle.Disconnect the engine har ...