help

I have a 02 Alero that the engine blew. I have a used engine to put into it but the shop guys cant seem to get the engine to sepertate from the transmission. Every thing is unhooked and ready to be pulled out but they think there is a pin holding the engine to the transmission, and i cant seem to find a engine diagram online so they can see whats holding the two parts together! Thank you for your time and help

Welcome to AF.

Which engine do you have? 3.4L V6 or 2.2L Ecotec?