This kit is compatible with:Chevy Avalanche 2500 2003 - 2006 Chevy Silverado 2500 1999 - 2000 Fits 2WD or 4WD Models with 6.0L Motor and 5 Speed Transmission OnlyChevy Silverado 2500 2001 - 2004 Fits 2WD or 4WD Models with Manual Transmission OnlyChevy Silverado 2500 2005 - 2010 Fits 2WD or 4WD Models Chevy Silverado 2500 HD 2001 - 2004 Fits 2WD or 4WD Models(WILL NOT FIT 4 WHEEL STEERING MODELS)Chevy Silverado 2500 HD 2005 - 2010 Fits 2WD or 4WD Models Chevy Silverado 3500 2004 - 2010 Fits 2WD or 4WD Models with Single Rear WheelsChevy Silverado 3500 HD 2007 - 2010 Fits 2WD or 4WD Models with Single Rear WheelsChevy Suburban 2500 2000 - 2006 Fits 2WD or 4WD Models with a 4.83" hub hole in the rotor. (WILL NOT FIT 4 WHEEL STEERING MODELS or 2 Wheel Steering models with 4.63" hub)Chevy Suburban 2500 2008 - 2011 Fits 2WD or 4WD Models GMC Sierra 2500 1999 - 2000 Fits 2WD or 4WD Models with 6.0L Motor and 5 Speed Transmission Only!GMC Sierra 2500 2001 - 2004 Fits 2WD or 4WD Models with Manual Transmission OnlyGMC Sierra 2500 HD 2001 - 2004 Fits 2WD or 4WD Models (WILL NOT FIT 4 WHEEL STEERING MODELS)GMC Sierra 2500 HD 2005 - 2010 Fits 2WD or 4WD Models GMC Sierra 3500 2006 - 2010 Fits 2WD Models with Single Rear WheelsGMC Sierra 3500 2004 - 2010 Fits 4WD Models with Single Rear Wheels