well, im installing lift blocks in the back, and i have the perfect height figured, but i gotta remove the 2 factory blocks that are at the bottom of the leaf spring pack. if you remove the 2 bolts that hold the spring pack together, you can push loose them from the bottom, but the bolts are sort of fastened to the little factory shims (peices of a leaf, same size as a block) can i just run grade 8 bolts through the spring pack and call it good? or do i realy need to do some sort of thing like that again? thanks