Originally Posted by Mahzo6
If you still have the rattle at the steps after trying all the other fixes, it may not be the steps!! My 38R had the AWFUL rattle and was taken in and checked 3 times, the techs at camping worlds, and McClains could not locate or fix. So I took it on myself to find the solution. The 38R has the forward splash fender, just forward of the right front tire, it has just enough space between this piece of metal and the frame for the hydraulics to rattle when the wind catches it. It has no brace on the bottom side. I added a bottom brace to stop this and no more rattle!! If you get under there take your hand and pull this metal back and let it vibrate and you will know if this is the issue!
Got under my Forza 36G on Saturday, and began looking to see what may be making that rattling noise that sounded like the steps when I was above 25mph and hitting slight bumps. At higher speeds, it would do it even on smooth roads depending upon the wind.
I took at look at the front fender of the wheel well, and as you mentioned, there was no bracket to the bottom corner. If you hit it with your hand, it would vibrate back and forth, and contact the step bracket. That was the noise I heard inside!!! It was contacting the steps enough that it was rusting where it was vibrating against the fender! I cut a piece of rubber 3/8" id hose about 3" long, and slit it down the side. Then I slipped it over the step bracket between the fender and the bracket. Noise was GONE! Thanks so much for telling me what to look for! If they would have used a short angle bracket and bolted the fender to the step, it never would have made a sound! Thanks so much!
As an aside, I found that the condensate drain hose (wrapped in corrugated wire loom) from the dash AC box was another noise that sounded like a loose rope or wire slapping under the steps when I got above 65mph. Apparently they wire tied this hose to a frame tube behind the steps, and left about a 20" length of it to dangle loose. Air would cause that hose to flail around slapping things under and around the steps. I put another wire tie on it at the bottom of the frame to secure it from moving. That annoying slapping is GONE!!!!
It's getting quieter all the time now!