Making a dynaimc simulation of a Differential in Autodesk Inventor 2011

Is there a basic guide on how to make a dynaimc simulation of a differential in inventor 2011? I am somewhat familiar with the dynamic simulation environment but not enough to deal with gears and how to make revolution joints properly. I have the differential made as an assembly and all of the contraints are in place but it wont convert the constraints to the proper joints.
2 Answers

I don't know if this will help you Dallas but there is tutorials for DS here
and also you can download the models that are in the tutorials also
http://wikihelp.autodesk.com/Inventor/enu/2012/Help/0073-Autodesk73

Hi Dallas,
Motion constraints don’t convert into Rolling joints automatically. You have to create them manually in the Dyn. Sim. environment.
If you want to get better in Dynamic Simulation, I strongly recommend a book called "Up and running with Autodesk Inventor Simulation 20XX" by Wasim Younis.
Good Luck