The web site info is the best, I'll get right on it. The Nissan people did eventually find out what I found on the tranny, it is a solenoid control assembly. Might be something to do with it, but at $150 I'll want to make positively sure that is the problem I will be looking inthe area you have outlined for the part you described. Any wires coming off it or is it just the plastic gear. If it doesn't cost much I'll throw one in just to check it out. Do you remember a ball park figure on what it cost you? ($150 to steep just to throw something at this. I'm probably going to try and take it out to see if putting any juice to it will make it work. I did see something with wires when I dropped the pan and I think it shows it in my first photo I posted(inside the pan). This is the diagram Nissan gave for that solenoid.
As you can see I still haven't figured how to post larger pictures