I will have to take a better picture when I get back to school. I'm a senior in Highschool doing this as an elective project. My teacher is no help. I have searched through fiches and nothing! It must be from the motor, motor mounts, or axel assembly.
Link to the previous topic from 2011 by another user:
http://www.dotheton.com/forum/index.php?topic=27275.0