my 04 1500 quad cab 4x4 does this like crazy. you guys with your "thats how trucks ride" attitude are full of ****. ive had more trucks than most will ever have and everything from half ton to 2 ton and every make there is. theres something wrong with these dodges and you dont know til you experience it. new shocks dont fix it. and everyone wants to tell you nothings wrong.
i think its springs myself. they get weak quick. im gonna try replacing mine. ill let you guys know.