Well it's hard to describe - ride feels like when something is out of balance like driveshaft or tires, but don't believe it's either since it does not do it on smooth roads - just on rough roads. It makes the ride very shakey - when it's happening, your voice sounds like your are trembling or quivering. I'll hook up the gooseneck this weekend and take it for a test run on some rough roads to see if it's better when loaded. Once I get the truck and trailer weighed by axle, I be able to adjust the air pressure accordingly. For now, I'm running 60psi all around - which is probably ok on the front, but not sure on rear tires. Don't know about the shocks.