[George Bongert]

Greetings, Fetch!

Barry would be right that it is a spade connector. They were inserted into a connector block, (but then you already knew that) and weren't all that easy to pull out of the block, and at other times more or less fell out on their own accord. GM could have come up with something better in design than these little creatures! I usually just cut the wire on the opposite connector block, and spliced the wire with a new insulated male and female spade or "bullet" style connectors to retain the ability to disconnect the wire if the need arose.