I have a 8x10 utility trailer that I have loaded between 3500 and 4000 pounds on to haul for scrap metal recycling. I would pull this thing with a 96 T&C van with the 3.8 motor. I do live in Florida with mostly flat land and at city speeds of 35 to 45 I felt fairly safe but at higher speeds I could feel the tail wagging the dog. Also, going over small hills such as railroad crossings I could tell the extra work the motor was doing. When adding the actual limits of the weight in the trailer plus the air drag from the front of the travel trailer I can see the van being pushed past limits. A short trip at slower speeds with no resistance would be much different from a long trip pulling a eight foot wide by atleast eight foot wide wall behind us for any length of time.
Now, I use a 2008 Ford Expedition, long wheelbase, to pull the same combination for the recycle yard and I don't even feel the trailer without electric brakes behind me. Better safe than sorry. The T2362 travel trailer tows even easier and I feel the weight distribution hitch with sway control and electric brakes bring the load back into reasonable, controllable ranges.
Beverly & Jim
1991 T-2363 Solaris