Nice looking rig. Seems normal enough. Lots of matter of fact tire solutions posted. Trouble is the lifted-big tire diesel pickup is nearly the national car around here - lots of them towing lots of different trailers - ditches don't seem to be littered with wreckage...
Too bad we aren't neighbors - it's fun to figure out "issues" like this and fix them.
After seeing the pics I would still weigh the loaded trailer. If weight distribution is not correct then fix that and tow with your truck and see. I would carefully weigh the trailer itself yes it means unhooking and hooking... don't do mobile phone math with your truck hanging down hill out the feed mill scale house drive :).
If still misbehaving test tow with your hitch apparatus on one, two, or three other trucks if possible.
Before I spent one more $1 on "solutions".
