I have noticed this for a while now and am wondering if anybody has the same problem or noticed it on any other trucks. Why does my bed have so much articulation while driving, mostly on more bumpy roads but it does happen on all terrains. I always look when driving behind other trucks to see if theirs does the same thing. I see it with Fords more than any other brands ans specifically mine does it really bad. I drove behind my friends 04 f250 yesterday and really paid attention, almost no movement where mine was moving back and forth the whole way. Is this bad? has anybody ever noticed this.