I found a neat " surprise " when I did my rear spring and hanger bushings, when someone else adds SS style springs, and you go in a turn, when you come outta said turn, said A Body kinda " slams" down, it means the Previous owner, left short shocks.....I also, Personally, by my own doing, found, over tightening the front sway bay to K bolts, will give you " hang ups"