4 inch lift with 57\" springs? I am moving the rear spring hangers on my burb frame from their stock location (52' springs) back to accept 56" springs, a 4 inch move towards the rear. However if I move them back 5 inches I can use 2 of the original mounting holes. So I thought maybe I could use some f**d 57 inch springs and save myself some some work and gain some flex. My problem is this, all the articles I have read on here pertaining to f**d 57's use a shackle flip for lift. I do not want to do a shackle flip. Is it possible to get a 4 inch lift in the spring pack only? If so, how or where? Thanks, Mike.