I recently hauled my 92' Jayco Cardinal from my grandmother's place we are cleaning out to my house. It was a 20 mile or so trip and I never drove over 55 mph.
The original 92' brochure shows a dry hitch weight of 225 lbs and a dry weight of 2200 lbs. Since this was just a move from one place to another and not a trip I was moving totally empty. There isn't even a battery in the box on the front right now.
My TV is a 2012 F150 4x4 with the Max Tow package.
During the 20 mile trip there were times I guess I hit a dips in the road or something, but it starting bucking a lot in the middle where the trailer sits on the ball. I didn't feel I was in any danger, but it was a noticeable oscillation up and down. Today I used my 12 ft utility trailer to haul a load of stuff from her workshop (work bench, saw, cabinets) and it was a heavy load. On the way down empty I could feel the bucking again, but on the way home that was pretty much gone. I am guess not enough tongue weight was causing the bucking feeling.
When I get everything repaired and ready for camping on the trailer I am kinda worried I am going to have problems on a long trip. The Jayco has a GVWR of 3300 lbs I think.
What I am wondering is, I am going to have enough tongue weight even with the battery, full propane, and a full water tank (20 gallon between the front of the trailer and ahead of the front axle) and stuff in the back of the truck to pull that heavy duty suspension down enough to stop the bucking.
I obviously have more truck than I need for this trailer, but that is better than not enough.
Is a WDH the answer just to stiffen things up a bit?
Previously we pulled this trailer with an 88 Suburban. No WDH or sway control. In fact my uncle was pulling right after it was bought and intentionally swerved to try to get it to sway and it won't. It doesn't to do anything but pull straight.
This picture shows what I have... I had already lifted the trailer off the ball, but you get an idea.