[mjlaupp]

Bangy things to look for:
WDH bars hitting swing hitch bracket pin if swing hitch is installed.
Loose items in the bumper storage compartment.
Folding steps bouncing.
Spare tire mount bouncing.
Play in corner support jack - jack only partially retracted.
Corner support jack bolts not tight to frame.
Right and left torsion bars touching each other.
Axle swing arm hitting frame at maximum deflection.
Broken bolt and/or cracked weld at axle mount to frame.
Cracked frame.