Im bout to dive into my truck head first here next week finally. While im swapping axles, i want address my problem with the 5.5 inch lift blocks that came in the rear. With the bigger D60 and zero rates up front, it will be about 7.5 inches of lift. So in the back, should i run something like 8 inch lift leaf springs or 6 inchers and a 2 inch block? Im thinking that with the 8 inch springs, im going to loose all of my flex?