The other number to ponder is the GVWR of your van. That would be the 5700 lb. it weighs plus the 400 lb. tongue weight. GVWR is the most the van can weigh.
I have a 2015 3500 DRW with air leveling and hauling a Arctic Fox 865.. Got about 24k miles on the pair. Works great, the truck is bone stock. Someone makes a rear torsion bar for that truck now. That would make it even better.
Here you go a Ram 3500 DRW long bed with a 2015 865 loaded up and ready to go. GVW is 14000 lbs on that truck.on the scale with driver and passenger.Steer axle 5940Drive axle 8320Total. 14260
There are no load enhancement after market parts for the air load leveling rear suspension. No sway bars, nothing. It works great just don’t expect to overload your truck then add parts to make it tote the load.
