Can't lead anyone astray when nobody is sure! I won't turn down any help.
Greg, hate to disappoint but you're looking at the diagram for an NSG370 6-speed 3.7L from 2009. Totally diffetent from the 01-04 bellhousings listed in your original guide. As for the bellhousing above, until we can find a visual representation of the 3.7L, I'm inclined to continue assuming that's a 3.9L bell.