I will drive the camper on new truck on Saturday, so post my impression then.
Not only the new ties don't fit too well, but new truck has taller sides, so I had to buy 3/4" plywood to shim it.
Still I have like 1/8" clearances to load it and seems wheels are wider than my 2007 had as I have to drive over jack foot to get under.
Its been years since I was practicing mechanics, but still the lower stableloads look to me like spring breaker.
They put the load on main pack in the point and shape the springs were never design for.
How many owners had broken springs when using lower SL ?