GM: CLICK TICK WHIRL NOISE FROM REAR AXLE. THE NOISE MAY BE PRESENT ON ACCELERATION, DECELERATION, OR WHEN THERE IS A TORQUE REVERSAL IN THE DRIVE-LINE (ACCELERATION TO DECELERATION). ALSO INCLUDED ESCALADE HYBRID MODEL YEARS 2008/2010/2011/2012. MODEL TAHOE HYBRID MODEL YEARS 2010-2012. MODEL SILVERADO HYBRID MODEL YEARS 2010-2012. MODEL YUKON HYBRID MODEL YEARS 2010-2012. MODEL SIERRA HYBRID MODEL YEAR 2010-2012. *JS