Re: My Ford E350 is all over the road over 70mph - sway bars
Our 2003 E350 v10 15 Pass Quadvan TTB 4WD w/71k miles handles great at any speed. Responsive, tight, comfortable - joy to drive in the mountains, highway, etc. Loaded (over a ton) or unloaded.
Our our 2002 E350 7.3 EB Cargo Agile TTB 4WD handles great at any speed. Responsive, tight, comfortable - joy to drive in the mountains. I have not had a super heavy load in this one yet.
I had a 1989 F350 Crew Cab 4x4 for a few years - that also handled well but was very uncomfortable on a long drive. Too firm, too bouncy unless it was carrying 500 lbs.
For many, many years we had a 1976 G30 LWB Cargo Pathfinder 4WD, solid front axle - That was uncomfortable to drive and did not handle very well, especially when loaded.
My expectation is my van (any van, imho) should handle/ride very well at any speed, I should have no issue driving for 8 or more hours on the highway/roads at the end of which I am relaxed and have enjoyed the time behind the wheel. I will also add I that I expect to have no concerns about my wife driving the van while I catch some rest/sleep.
Beastie 3: 2002 7.3 EB Cargo: Agile TTB, CCV Mid Top, Custom Walk Through, Lots of stuff added. BlingMyRig.com