[Padgett]

Mine is 3700 and with a 50-50 distro that is about 2300 on the rear axle. Add in 470 tongue (measured) with a class IV, still can carry nearly a 1/2 ton more. Don't intend to but could.

Now if you look back at my post I said the air lifts were not intended to add any load, rather they are intended to level the TV to keep the headlamps adjusted. I could do the same with stiffer rear springs but this is adjustable.

I also have the advantage that my heep also has sway control built in. So no I am not using in an attempt to add capacity over the rating or reduce sway but rather just to keep the headlamps aimed properly.