how many people out there have trucks with saggy butt? of those who say yes, how many have looked to see if the spring packs in the rear werent cracked? i am just currious, because i see a lot of people on here putting a zero rate in or a shackle flip to cure saggy butt. in the two K-5's ive had and one of my dads many, they had saggy butt, and it was in every case one if not both rear spring packs with atleast the main leaf and sometimes more leafs broken right in half. just a heads up to take a flash light out there and look between the u bolts once and a while.