I've done some math and research, there's alot of views on how much the axle will cycle on the shackle before it lifts the trailer since there's only 3 points of contact. My problem is I'm running a 35in tire and I'm already tall..... I'm close enough to give it a whirl before I redesign everything. I built it to match the xj not to rock crawl, the roughest road the teardrop will see is some gravel roads...