Wheel alignment report after 900 mile trip

If the squeak is in the cabover area, often that's caused by the attachment of the bunk board (or whatever you want to call it for an entertainment center) to the cab structure loosening up. They generally use several screws driven up through the cab into the plywood, and these vibrate loose over time. A likely temporary solution is to take down the headliner material and snug them up again; a more permanent solution is to install bolts and nuts (nylock nuts or normal nuts with split washers or nuts and lock nuts) through the bunk board and the cab structure. Something like carriage bolts would work nicely and not have too big of a head, or the head could be recessed slightly, or sometimes the trim on the bunk board can cover the bolt head.

I learned of this from some other poster here--I forget who it was--and put carriage bolts and nylock nuts/washers in on my motorhome and cured that annoying squeak. I'm sure the connection is also a good bit sturdier now.