when i installed my new shocks and springs, you couldnt budge the front end. my fatass friend jumped up and down on the bumper and it moved mabey 1/4" to 1/2". the worst ride of my life for about a month or so.
I had a stiff bumpy ride until I freed up the rear shackle which was seized. Well, I didn't actually free it up because the bolt was seized and wouldn't break loose, well the bolt did break off anyways. I ended up replacing the shackle and the bushings now it drives like a new truck, a lot less bumpy and stiff.