I have a '72 K5 with what appears to be a 4" Rough Country lift with rear blocks my questions are as follows: Is a measurement of the rear blocks going to equal the amount of lift?, the PO said it had a 2.5" lift but the blocks are definitely bigger than that. I want to get rid of the blocks and have been looking at an ORD 4" shackle flip, if I do this will I have an even stance, as in 4" front and 4" rear total lift height? And to complicate things more: would I be better off just buying some Alcan springs for the rear to give me 4"? Also, should I pull the old springs and clean 'em and POR them or something when I do this, or is that all cosmetic? I'm sure there are some that will say ditch the Rough Country altogether, go ahead and post up, I'm open to suggestions.