Solid axle rigs, jeeps and scouts for example, work fine if spring over axle and especially good if reverse shackle. Airing down tires helps too. I stay away from e rated tires unless it's also a tow rig or truck. c rated tires work better aired down since they squish better. But don't skimp on tires here and have a good spare or two. I knew one guy in Central Oregon that kept four spares with him at his camp. And he really didn't four wheel. The lava rocks over here wreak havoc on tires. Smooth river rocks I really don't worry about. Jagged lava rocks and I'll get out and walk a path.