When using a dropped axle you need to modify the steering arms. When using just the springs to lower your truck you may have to bend your steering arm for the drag link. You want the drag link to be as level and parallel to the frame so you don't have bump steer. If you are installing a dropped axle I have a tech article on my web site on us installing a dropped axle an installing the modified steering arms. Here is the link http://www.droppedaxles.com/TECH_ARTICLES.html#TXTOBJ7D9416E352E1C51