I have a 2008 Ford F-150 4x4 Supercab that I just got, I plan on taking it back in to see if they can find what is causing the issue but would like to know if anyone else could possibly know what it may be, Everytime I take off from a dead stop the truck starts to make a rumble/shutter coming from underneath, If if take my foot off the gas it stops, and it also does it when I turn while accelerating also, sometimes it is fine but it does it almost all the time now, the truck does not do it after 20km , I can accelerate with no issues, its smooth and same with turning, its only when staring off. I thought it may be a U-joint or CV joint causing it but I am not sure. The truck is automatic and it has just over 150k but has been extremely well taken care off, and it just was certified yesterday. I am going to take it in tomorrow and see what they say.