When I pulled the motor and trans., I had disconnected the trans from the drive shaft. But as I was moving the eng/trans. out, I heard a clunk and it was the front of the drive shaft. I could not find any aligning marks on the drive shaft. I then found the u joint was stiff. So then I had the drive shaft rebuilt with the new center bearing at a quality drive line service I have used before. They of course balanced the complete shaft. After rebuilding the shaft I made sure there were alignment marks on both sections. So yes the drive shaft is timed right.