It's a F53 and there are a FEW things you can do, that SLIGHTLY improve things in my opinion. Maybe better shocks. (Koni or Bilstein). CHF helps, but doesn't really improve rough road ride in my opinion. Correct tire pressure helps, but I'd rather have more air than needed for the weight than less and have a blowout. Have your setup weighed and set tire pressure accordingly plus 10-15 psi, and get a TPMS to make sure it's always right. I've bought sway bars, tracbars, steering stabilizers and spent $$$ trying to make this ride better with only slight improvements. My suggestion is to accept it or buy something else. DRIVE MOTORHOME ON ROUGH ROAD BEFORE BUYING IT. They all ride well on a smooth road, but not too many smooth roads out there except the one in front of the dealership.