do with the model? My son is military & I will be flying out to see him and borrow his Durango for sight seeing. He does oil change maintenance & informs me that the vehicle is shaking all over at around 50mph. I will probably be taking it for repair & don't want to get ripped off. I will start with tire inspection for a busted belt, tie rods & boots, but is there anything else that commonly causes a vehicle to shake?