I have read that ppl can put a PRG 2.5 leveling kit on 2WD trucks. And have also been told that the '08 and up trucks can only use a 1.5 leveling kit because they sit higher. What is the kit i should get? I want to go the max height i can for my 2WD 2011 Titan. I would also be getting 1-1.5 inch blocks for the back as well. Thanks for any input and i am looking forward to modding my baby and taking pics.