We ran 2 Ford F250's for 15 years with the overload/camper spring package that is offered by Ford. Never had a real problem with stability, but was also a mite low in the rear with a 2500 lb. load. When we purchased our current camper, I had an AirLift 5000 kit installed. With 80-90 lbs. of air, the back end came up, and the ride was much improved. It was a little better with stability, but mostly it rides with less jarring on bumps. We did not put in a compressor, but are planning to put one in for convenience, this summer. The only downside to the setup is that the air hoses are a fairly stiff plastic, and after 3 years, they are getting brittle and split, and we have had to replace the hoses and fittings recently. I think it is probably just a maintenance issue you should expect when living in the northeast with hot and cold. I might invest in a heavier rear Helwig anti sway bar one of these days.
