Nissan Repair: 2001 Quest, lockup torque converter, judder

Question
I have a 2001 Nissa Quest with 45K miles. I shakes violently at high speed (50 mph+). It has done this twice but only when it is warm. The brakes were checked and they are fine. Any ideas.

Answer
John,

If it does not do it all the time I would check the overdrive the next time it acts up.  Basically, press the button and shift out of overdrive and see if it goes away.  The lockup torque converter could be slipping and that will cause a judder you describe.