I picked up my 07 Tundra DC, 5.7, Pyrite Mica last week and have just started noticing a vibration between 30-40 mph. The vibrations stop if I adjust my foot pressure on the gas pedal. It almost feels the same as if I'm running over the ridges on the interstate that alerts you if you drift into the emergency lane. These vibrations don't happen everytime but enough to be annoying, especially when I've got less that 200 miles on the truck. I'm taking in to the dealer tomorrow morning but am interested if anyone has experienced any low spped vibrations similiar to this.