I've never had noticable axle wrap issues on either axle. My rear springs are stock packs with a few leafs removed, but they still have a bit of arch to them at ride height. My fronts have a 2" short add-a-leaf and have very little arch at ride height. The front has pinion angle issues though, due to the shackle being on the rear side of the spring and the height relationship of the front and rear hangers.