camperboy

They sway was almost certainly a result of the bikes on the back levering too much weight off the tongue. When that situation occurs you get sway. I sometimes travel with bikes in the TM, on the floor in front of the couch.

It does sound like you need heavier bars. I have the Equalizer between my 3023 (actually a 1990 M-26) and Ford Ranger. Performs like a champ. I have had no noticed sway despite winds and a couple emergency avoidance manuvers. Towed it over 7000 miles so far, from NJ to Maine, to Colorado.

One other thought is that some of the GMC/Chevy vans came with some sort of composite fiberglass single leaf spring. Seems that anyone towing always wanted steel springs as the others were too soft. Don't know if you have them or not. As I recall they had the same ratings.

Camperboy