Yes, cranking the torsion bars increases the height of the front only. Yes, it affects alignment. You can obtain up to 3" in height with the front torsion bar. To raise the rear you will need to replace your stock rear springs. Old Man Emu (OEM) is the most commonly used supplier on this forum for those springs. Check out my post in the search box, Maddawg's Madness. You can get an idea of the trimming for larger tires.