I have a 95 3.2 v6 automatic and when in gear at higher speeds the vehicle bucks and stumbles depending on the position of the throttle. I have checked/replaced almost all the sensors and am still stuck. The rear anti lock and emergency lights are on and i thought it was the Vehicle Speed sensor in the rear diff but replacing that seemed to do nothing. I am running out of ideas and could use some help. These problems may not be linked but i really need to stop the hesitation.