The biggest thing about a level trailer when towing is keeping the trailers leaf spring suspension level. Some mistakenly think the trailer suspension equalizer bar evens the load which it doesn't 100 percent.
Most equipment trailer mfg keep the deck level with the bottom of the frame at the forward and aft spring hanger mounts. This way when dot weighs us we know the trailers axles/tires are carrying equal loads.
A nose high trailer can place more load on the trailers last axle....and take weight from the front axle. This can cause the front axle(s) brakes to flat spot the tires.
Also the trailer axle suspension works best when level.
Triaxle trailers need closer attention to being level when on the road.
And of course we know a nose high or low condition can cause chunking issues with the tow vehicle.
Torsion axles ??
Non of my rv trailers have never had them and I wouldn't have them on any of my work trailers. Others may have some experience with them.
Pin/GN ball weight changes little to non with a out of level trailer....at least on my flatdeck trailers when loading and weighing for a balanced load. I doubt rv trailers are different
Jim
