I have the same van but it's a 2000 with a full-floater. I have pulled my track loader and cars behind it, but the worst I ever tried was my 6,000#, 3-axle gooseneck. I was selling it to a guy down in Tennessee and the truck I use to pull the gooseneck doesn't have air conditioning or cruise control. So for grins I bought a 2-5/16ths ball and hooked the 2,000# tongue weight empty trailer to the van. I was surprised that in spite of that long overhang--the van didn't give a 5hit about that trailer.
We use the van to go to Florida every year and get 21mpg with my motorcycle and a bunch of bikes hanging way off the back. But my wife bought a new Mercedes Sprinter so the days are numbered I think.