Front end banging noise

[bpye911]

I have a 2010 Ventana 3933 on a Spartan Chassis. I get a loud bang noise when I pull out onto a street with a crown in the road and the chassis twists. It happens when the front right wheel goes down in the low part of the road and the drivers wheel goes up. It is NOT independent suspension, it is "I" Beam, so when this happens there is major chassis twist. I've have the front end steering and suspension components checked at the dealer and all is OK according to them. When it makes the noise I can feel it in the steering wheel, but steering box is mounted to directly to chassis. I suspect a broken weld or loose bolts in cross members. Has anyone else had this problem? I called Spartan, they state they don't have a history of this. I've crawled around under MH with a flashlight looking for broken welds and did check some bolts that I was able to get a wrench on. Its pretty tight quarters under there. I did get movement on some bolts. Has anyone experienced this?

[Dutch Star Don]

I doubt it's the same, but I had a similar issue when new. As I would traverse a driveway I got a bang in my IFS. I was under there looking and saw that my steering box was loose. Of the 5 bolts, two were a 1/2" loose, two were finger tight and one was snug. Mine came that way from the factory.

[rodz]

I have a 2009 Ventana. Mine was doing the same thing. I had the brakes adjusted and it hasn't done it since. When it would clunk I noticed that it only did it when I had my foot on the brake.