56\" rear springs well i have looked over 200 pages and done the search. who is running 56" rear springs. will those springs center up the rear axle a little better. any pros or cons to running the springs? I have the ORD shackle flip and I am getting ready to swap in the 14 bolt and was thinking about changing springs well I was in there. guess i could let ya know about the truck. 72 blazer 8" suspension lift 3" body lift 38.5" tires, 8" springs upfront 4" in the rear with ORD shackle flip.