My frame could use some more bracing and a better, or extra crossmember. But the sliders and roll cage seem to stiffen the flex a little. It still twisted some on this pic. Just better than stock! Always more work to do. HaImpressive, the step side box isn't all twisted when the rear articulates. Mine would twist the frame as much as the suspension when it hit the rear overload springs. I took them out (no overloads now) and the suspension does most of the work, not the frame now.