I have an 08 Prius it has done 190,000 miles last week it suddenly started shaking from what felt like the transaxle. The car still drove and seem to shake a lot worse when it was in park or reverse it definitely felt like it was a bearing or something mechanical broken in the trans unit. After a bit of research I decided to remove the trans, strip it down and have a look convinced that I would find fragments of bearing or something blatantly wrong. Yesterday I removed the unit (nothing to be scared of, dead easy really) and today I have stripped the transaxle down ( after viewing a very helpful you tube vid) much to my disappointment I cannot see anything wrong I am now thinking I was a bit too hasty and maybe it could be something else. Has anyone got any suggestions?