I wrote to Autozone to let them know they missed our van (2005 Pontiac Montana SV6) on their parts website and let them know of the other GM equivalents. They responded more than a week later:
We apologize if you experienced difficulties while using AutoZone.com. We appreciate you taking the time to send us your feedback. We have
forwarded your comments to the Webmaster for further consideration.
Wow, I’m so impressed. “Thanks for the catch, we’ll make sure it gets added” would have been so bad for customer relations, right?