To be sure, I would call your local GM dealership and give the parts department your last 6 digits of your car'* VIN. Ask them to give you the part number they have in there system.

Since Rockauto is selling AC Delco parts you should be able to cross reference the number the dealer gives you with what rockauto is offering.


Also...

look at your parts identification list found on the label located on your spare tire cover. white label black writing. look for codes C61 or C68