Doesn't the JX have the same transmission as the pathfinder? Haven't heard much on the JX having judder problems with the transmission. Why do you think that is?
at least the JX35's and 2014 QX60's shouldn't be affected by this.If Nissan ever offered to change out my Pathfinder transmission for one from the JX35, I'd take it in a heartbeat. I would gladly trade off the towing capacity for piece of mind from the shuddering.