Part of the yearly check of items is all the bolts on the 5er hitch and rail mounts. Additionally, you need to check all of the plumbing connections in the trailer, then all of the electrical connections.
Running down the road, you are subjecting the RV to a Category 1 hurricane and an earthquake all at the same time, so things shake loose.
Ken
Amateur Radio Operator.
2023 Cougar 22MLS, toted with a 2022, F150, 3.5L EcoBoost, Crewcab, Max Tow, FORMER Full Time RVer. Travel with a standard schnauzer and a Timneh African Gray parrot