Traded in the Class A DP for a class c!

I would recommend that you check the adjustment of the Hellwig springs on your Greyhawk. They should be adjusted so that there is not more than 1" clearance to between the Hellwig helper springs and the Ford factory springs. Another thing to check is the installation of the rear leveling jack system. There must be at least 7" - 8" of clearance from the ground to the bottom of the landing jack pads. If there is less you need to have the dealer move the jacks up so that they are installed correctly. If you have issues with sway and being blown around by wind and or trucks you can install a Roadmaster steering stabilizer and a Hellwig front sway bar. The Roadmaster steering stabilizer is a life saver! If you install hush mat in the doghouse you will dramatically reduce the engine noise in the cab.