Not sure if this would be an issue with the 5th-wheelers, but we had an incident on our way to Arizona two weeks ago going through a construction zone on the highway . . .
The road was really rough, and even at a reduced speed, we hit a huge bump and rocked the truck and trailer violently!
We heard a loud sound (can't describe the sound . . . but it wasn't good) . . . and when we pulled over at the next gas stop and I inspected the tires, I found that the bottom of the slideout bottomed out on the tires and ripped a gouge all the way around one of the tires, and later noticed it did the same on one of the other tires, but not as bad.
At first I thought I was about to join the BlowMax Club, until I discovered the tire marks on the trailer itself!
I have a photo, but can't figure out how to post it on my iPad ( I'll get my laptop out and edit this post in a minute and put the photo in).
OK . . . on the laptop now . . . here it is:
To make a long story short, I discovered there is less than a half inch of clearance between the top of the tires and the bottom of the slideout on one side and the floor on the trailer on the other side.
And to make matters worse, for some reason, the hitch was set up low in the front (spent over $400 at the hitch shop getting it set up
) so the front tires I couldn't even get the tips of my fingers to fit in that space.