Prostar bouncing/shaking when empty

[GhostHauling]

So the Prostar Bounce was The Result of My tractor being very much out of alignment and specifically the Tow was real bad they said and after I purchased two steer tires and she drive like new ! Alignment was 200 bucks steers were 425 a piece with a deal and no casing credit I sent the steers to get retreaded