I have not. Only comment would be is I had trailer on the exact same truck, only it was a 2019. No issues on that truck so I doubt it’s the trailer but… anyway, I’m Gonna do tires, balance and alignment next Tuesday.

 

Your doing everything, so i hope that takes care of it. See if the shop has an EVA and someone that knows how to use it. Tires and wheels are 12hz on the EVA. (Electronic Vibration Analysis)
I was pulling my 18' Walleye boat thru the mountains, and picked up some brake pulsation from the back brakes, but it went away when they cooled down.
hand torquing wheels is critical in my book, or the torque sticks. both my 2003s have the original back rotors. It's those lousy e-brake shoes that suck..