TOYOTA: REAR DRIVESHAFT/PROPELLER SHAFT CLUNK/THUNK NOISE. SOME OWNERS OF 4WD EQUIPPED 2007-2008 MODEL YEAR TUNDRA VEHICLES MAY EXPERIENCE A CLUNK/THUNK NOISE FROM THE REAR OF THE VEHICLE OR A BUMP-FROM BEHIND SENSATION JUST BEFORE OR WHEN ACCELERATING FROM A STOP. *PE UPDATED 10/14/11. *PE