I currently have a 2001 F-250 super duty with a 8" skyjacker lift kit all suspension. I really want to get to 12" of lift. Is there any way to get to 12" without buying a new lift kit or adding a body lift?

 

Background on what you want to do, ie tire fitment, flex, etc, would be more useful to us in trying to help you out than calling a 50% increase lift "just a little bit more". 4 more inches of lift isn't a little, it might out you in the situation of your driveshafts not fitting, steering links being too short, brake lines and vac hoses and a dozen other detail items. You have to look at the entire picture and not isolated components. Start with detailing where you are, then where you want to end up, and you'll get better answers.