Welcome, potentially, to Club TC. If you see a lot of sway with hard sides, you've been following the wrong campers. Hundreds on this very forum have solved the sway business with its few foibles. The best advice I can offer is for you to pore over the many posts regarding this issue, even going into the archives inputting key words like off-road, sway, hard side, anti-sway bar, suspension, super springs, adding leaves, rear springs, shocks, lift, lean, and the like. You will certainly get a snootful, especially if you go back for years in the archives. Also, words like, air bags, helper coils will certainly bring a mixed result.
regards, as always, jefe
Sway? I doan feel no stinking sway!