I have noticed a bit more roll than stock once we added:
4" Metalcloak lift
The Gen Right tank
Heavier motor and trans
Currie rear anti-rock bar
Is it the Currie bar that is the cause? Hard to say. We also have a Gobi rack, with a road shower, Hi-Lift, shovel, Maxtrax, and awning mounted to it. I really only notice the roll in clover leaf freeway ramps or other high speed tight corners. We did add the Currie Anti-Rock front bar and had to remove that due to excess body roll. With all the other mods, the Currie front wasn't stiff enough, so we went back to the stock front anti-sway bar.
Sorry, I don't have the dimensions on the Currie rear, maybe I can get those later today.