Some roads are just awful, face it. In the family sedan, you'll never notice. But get in a truck and especially pull a trailer, it can be awful. A lot has to do with how aired-up your tires are. But still, the suspension on a truck is stiffer than the family sedan, for sure. So every crack in the road is felt. For this reason, I quit driving interstates, because they are so rough on the truck and feel like I'm beating it to death. Where bridges join, where construction has occurred, on concrete roads, there nothing forgiving with a truck. I've run into sections of interstate where I've had to slam on my brakes because the truck started bouncing so hard I though I'd loose control. The only thing I have found to help, is less pressure in the tires.