I was at the track on Monday and was having some issues with missing 3rd gear. Having never had that issue before I thought it was odd and chalked it up to a cold day. On the way home I noticed I could upshift thru all the gears but could not downshift from 6th to 5th. I ended up going from 6th to 4th just to upshift to 5th. The only time I can downshift from 6th to 5th is when the car is not moving. Could this be related to the internal rails? or does it sound more like synchronizers? There are only 3000 miles on the trans.