If it came disconnected at the linkage then you're home free, take that puppy off from the engine bay ;-) I never get that lucky, but hey, some people do LOL
What came disconnected? If its just not parking I can walk you through that before you turn contortionist to try to remove it? Is the only thing it's not doing well is parking?
Three wires to the bulkhead connector is a 2 speed, 4 wires is a variable speed/three speed. That one looks like a 2 speed but I can't really see the harness real well in the photo.
http://www.passion4mopars.com/gi_leece-neville-resto.html