I just went from a 4.5 short arm lift w/ SUA to a 7.5 long arm lift w/SOA. The previous posts are accurate, you are going to have to get rid of the front suspension unless you want an extreme rake. I did a hybrid kit on my rig, there a few MJ kits out there but not many. I used stock MJ springs from Motion Offroad, the lowest perchs I could find and it raised the rear about 6.5 in on a D-44. In order to get the rig level It required 7.5 in of lift in the front. If you do order rear leafs check w/ Hellcreek first. Motion Offroad jerked me around on my order, told me they were on the shelf and it took over 3 weeks for them to arrive. Good luck on the build.