I'd noticed lately that the entry door step was getting a little springy, felt like it was sagging, and had developed a squeak, so I figured it was time to check the mounting bolts.
Well...the one on the left side doubles up with one of the bolts that mount the trailer body to the chassis...and it was a little loose. Snugged it up with a 1/2-inch wrench, and the step felt a lot better, and the squeak was gone. Just for giggles, I started checking the rest of the bolts that mount the upper portion of the trailer to the frame, and discovered that nearly all of them weren't very tight...and one or two were way on the loose side (see the photo below) and one was missing the nut completely.
The one in the photo is just forward of the front wheels.
Anyone have any idea how snug these should be? Tight-tight? Or just snug to give them some room to move a bit as things flex?
I know I've got a ton of miles in on mine, and have had lots of road vibration, but I was surprised. I'm thinking of finding some replacements Nylock nuts so it doesn't happen again. Might be worth a peek on your trailers.