Guys, my 07 Pacifica shifts hard, (Clunks) when you are under light throttle going into 3rd gear. It is only 3rd and only under light throttle, like when you are driving through a neighborhood and are on and off the throttle. It has done this since new. Any ideas what might be going on? When I had a dealership look at, they said it was a design issue with the German six speed tranny.