Yukon Gear Grizzly Locker For GM & Chrysler 11.5in w/ 38 Spline Axles

Everything about the Yukon Grizzly Locker is hardcore, its casing and gears, its advanced gear tooth design, and its impact on traction and performance. The Yukon Grizzly Locker is a mechanical positive-locking differential that’s engineered for rock crawling, serious trail running, off-road racing, and drag racing. The unit provides 100% power to both tires, while still allowing for disengagement while negotiating turns. The Yukon Grizzly Locker is a patented design that features innovations that make it tougher than the competition. Its inner clutch teeth have a larger radius at the base, which offers up to 350% greater strength versus back-cut designs. The Grizzly Locker’s larger teeth also resist breakage caused by shock-loading or catastrophic axle failure. It’s a serious piece of mechanical engineering for serious driving conditions. Fits AAM 11.5'' with 38 spline axles. Grizzly Lockers are a mechanical locking differential designed for off-road and racing use. Patented design reduces common locker failures. Factory spindles will need to be bored out with tool part number YT H32 in order to accept the 38 spline axles this locker takes. 11.5AAM, 38spl, GM & DODGE GRIZZLY LOCKER Fits, Fitments 2001 Chevrolet Silverado 2500 Base 2001 Chevrolet Silverado 2500 LS 2001 Chevrolet Silverado 2500 LT 2001 Chevrolet Silverado 2500 HD Base 2001 Chevrolet Silverado 2500 HD LS 2001 Chevrolet Silverado 2500 HD LT 2001 Chevrolet Silverado 3500 Base 2001 Chevrolet Silverado 3500 LS 2001 Chevrolet Silverado 3500 LT 2001 GMC Savana 3500 Base 2001 GMC Savana 3500 SLT 2001 GMC Sierra 2500 SL 2001 GMC Sierra 2500 SLE 2001 GMC Sierra 2500 SLT 2001 GMC Sierra 2500 HD SL 2001 GMC Sierra 2500 HD SLE 2001 GMC Sierra 2500 HD SLT 2001 GMC Sierra 3500 SL 2001 GMC Sierra 3500 SLE 2001 GMC Sierra 3500 SLT 2002 Chevrolet Silverado 2500 Base 2002 Chevrolet Silverado 2500 LS 2002 Chevrolet Silverado 2500 LT 2002 Chevrolet Silverado 2500 HD Base 2002 Chevrolet Silverado 2500 HD LS 2002 Chevrolet Silverado 2500 HD LT 2002 Chevrolet Silverado 3500 Base 2002 Chevrolet Silverado 3500 LS 2002 Chevrolet Silverado 3500 LT 2002 GMC Savana 3500 Base 2002 GMC Savana 3500 SLT 2002 GMC Sierra 2500 Base 2002 GMC Sierra 2500 SL 2002 GMC Sierra 2500 SLE 2002 GMC Sierra 2500 SLT 2002 GMC Sierra 2500 HD Base 2002 GMC Sierra 2500 HD SL 2002 GMC Sierra 2500 HD SLE 2002 GMC Sierra 2500 HD SLT 2002 GMC Sierra 3500 Base 2002 GMC Sierra 3500 SL 2002 GMC Sierra 3500 SLE 2002 GMC Sierra 3500 SLT 2003 Chevrolet Silverado 2500 Base 2003 Chevrolet Silverado 2500 LS 2003 Chevrolet Silverado 2500 LT 2003 Chevrolet Silverado 2500 HD Base 2003 Chevrolet Silverado 2500 HD LS 2003 Chevrolet Silverado 2500 HD LT 2003 Chevrolet Silverado 2500 HD WT 2003 Chevrolet Silverado 3500 Base 2003 Chevrolet Silverado 3500 LS 2003 Chevrolet Silverado 3500 LT 2003 Dodge Ram 2500 Laramie 2003 Dodge Ram 2500 SLT 2003 Dodge Ram 2500 ST 2003 Dodge Ram 2500 Van Base 2003 Dodge Ram 3500 Laramie 2003 Dodge Ram 3500 SLT 2003 Dodge Ram 3500 ST 2003 GMC Savana 3500 Base 2003 GMC Savana 3500 SLE 2003 GMC Sierra 2500 Base 2003 GMC Sierra 2500 SLE 2003 GMC Sierra 2500 SLT 2003 GMC Sierra 2500 WT 2003 GMC Sierra 2500 HD Base 2003 GMC Sierra 2500 HD SLE 2003 GMC Sierra 2500 HD SLT 2003 GMC Sierra 2500 HD WT 2003 GMC Sierra 3500 Base 2003 GMC Sierra 3500 SLE 2003 GMC Sierra 3500 SLT 2004 Chevrolet Express 3500 Base 2004 Chevrolet Express 3500 LS 2004 Chevrolet Silverado 2500 Base 2004 Chevrolet Silverado 2500 LS 2004 Chevrolet Silverado 2500 LT 2004 Chevrolet Silverado 2500 WT 2004 Chevrolet Silverado 2500 HD Base 2004 Chevrolet Silverado 2500 HD LS 2004 Chevrolet Silverado 2500 HD LT 2004 Chevrolet Silverado 2500 HD WT 2004 Chevrolet Silverado 3500 Base 2004 Chevrolet Silverado 3500 LS 2004 Chevrolet Silverado 3500 LT 2004 Chevrolet Silverado 3500 WT 2004 Dodge Ram 2500 SLT 2004 Dodge Ram 2500 ST 2004 Dodge Ram 3500 Laramie 2004 Dodge Ram 3500 SLT 2004 Dodge Ram 3500 ST 2004 GMC Savana 3500 Base 2004 GMC Savana 3500 SLE 2004 GMC Sierra 2500 Base 2004 GMC Sierra 2500 SLE 2004 GMC Sierra 2500 SLT 2004 GMC Sierra 2500 WT 2004 GMC Sierra 2500 HD Base 2004 GMC Sierra 2500 HD SLE 2004 GMC Sierra 2500 HD SLT 2004 GMC Sierra 2500 HD WT 2004 GMC Sierra 3500 Base 2004 GMC Sierra 3500 SLE 2004 GMC Sierra 3500 SLT 2004 GMC Sierra 3500 WT 2005 Chevrolet Express 3500 Base 2005 Chevrolet Express 3500 LS 2005 Chevrolet Silverado 2500 HD Base 2005 Chevrolet Silverado 2500 HD LS 2005 Chevrolet Silverado 2500 HD LT 2005 Chevrolet Silverado 2500 HD WT 2005 Chevrolet Silverado 3500 Base 2005 Chevrolet Silverado 3500 LS 2005 Chevrolet Silverado 3500 LT 2005 Dodge Ram 2500 Laramie 2005 Dodge Ram 2500 SLT 2005 Dodge Ram 2500 ST 2005 Dodge Ram 3500 Laramie 2005 Dodge Ram 3500 SLT 2005 Dodge Ram 3500 ST 2005 GMC Savana 3500 Base 2005 GMC Savana 3500 SLE 2005 GMC Sierra 2500 HD Base 2005 GMC Sierra 2500 HD SLE 2005 GMC Sierra 2500 HD SLT 2005 GMC Sierra 2500 HD WT 2005 GMC Sierra 3500 Base 2005 GMC Sierra 3500 SLE 2005 GMC Sierra 3500 SLT 2005 GMC Sierra 3500 WT 2006 Chevrolet Express 3500 Base 2006 Chevrolet Express 3500 LS 2006 Chevrolet Express 3500 LT 2006 Chevrolet Silverado 2500 HD LS 2006 Chevrolet Silverado 2500 HD LT 2006 Chevrolet Silverado 2500 HD WT 2006 Chevrolet Silverado 3500 LS 2006 Chevrolet Silverado 3500 LT 2006 Chevrolet Silverado 3500 WT 2006 Dodge Ram 2500 Laramie 2006 Dodge Ram 2500 Power Wagon 2006 Dodge Ram 2500 SLT 2006 Dodge Ram 2500 Sport 2006 Dodge Ram 2500 ST 2006 Dodge Ram 2500 TRX4 2006 Dodge Ram 3500 Laramie 2006 Dodge Ram 3500 SLT 2006 Dodge Ram 3500 Sport 2006 Dodge Ram 3500 ST 2006 GMC Savana 3500 Base 2006 GMC Savana 3500 LS 2006 GMC Savana 3500 LT 2006 GMC Sierra 2500 HD SL 2006 GMC Sierra 2500 HD SLE 2006 GMC Sierra 2500 HD SLT 2006 GMC Sierra 2500 HD WT 2006 GMC Sierra 3500 SL 2006 GMC Sierra 3500 SLE 2006 GMC Sierra 3500 SLT 2006 GMC Sierra 3500 WT 2007 Chevrolet Express 3500 Base 2007 Chevrolet Express 3500 LS 2007 Chevrolet Express 3500 LT 2007 Chevrolet Silverado 2500 HD LT 2007 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HD Classic WT 2007 GMC Sierra 3500 Classic SL 2007 GMC Sierra 3500 Classic SLE 2007 GMC Sierra 3500 Classic SLT 2007 GMC Sierra 3500 Classic WT 2007 GMC Sierra 3500 HD SLE 2007 GMC Sierra 3500 HD SLT 2007 GMC Sierra 3500 HD WT 2008 Chevrolet Express 3500 Base 2008 Chevrolet Express 3500 LS 2008 Chevrolet Express 3500 LT 2008 Chevrolet Silverado 2500 HD LT 2008 Chevrolet Silverado 2500 HD LTZ 2008 Chevrolet Silverado 2500 HD WT 2008 Chevrolet Silverado 3500 HD LT 2008 Chevrolet Silverado 3500 HD LTZ 2008 Chevrolet Silverado 3500 HD WT 2008 Dodge Ram 2500 Laramie 2008 Dodge Ram 2500 Power Wagon 2008 Dodge Ram 2500 SLT 2008 Dodge Ram 2500 ST 2008 Dodge Ram 2500 SXT 2008 Dodge Ram 3500 Laramie 2008 Dodge Ram 3500 SLT 2008 Dodge Ram 3500 ST 2008 Dodge Ram 3500 SXT 2008 GMC Savana 3500 Base 2008 GMC Savana 3500 LS 2008 GMC Savana 3500 LT 2008 GMC Sierra 2500 HD SLE 2008 GMC Sierra 2500 HD SLT 2008 GMC Sierra 2500 HD WT 2008 GMC Sierra 3500 HD SLE 2008 GMC Sierra 3500 HD SLT 2008 GMC Sierra 3500 HD WT 2009 Chevrolet Express 3500 Base 2009 Chevrolet Express 3500 LS 2009 Chevrolet Express 3500 LT 2009 Chevrolet Silverado 2500 HD LT 2009 Chevrolet Silverado 2500 HD LTZ 2009 Chevrolet Silverado 2500 HD WT 2009 Chevrolet Silverado 3500 HD LT 2009 Chevrolet Silverado 3500 HD LTZ 2009 Chevrolet Silverado 3500 HD WT 2009 Dodge Ram 2500 Laramie 2009 Dodge Ram 2500 Power Wagon 2009 Dodge Ram 2500 SLT 2009 Dodge Ram 2500 ST 2009 Dodge Ram 2500 SXT 2009 Dodge Ram 3500 Laramie 2009 Dodge Ram 3500 SLT 2009 Dodge Ram 3500 ST 2009 Dodge Ram 3500 SXT 2009 GMC Savana 3500 LS 2009 GMC Sierra 2500 HD SLE 2009 GMC Sierra 2500 HD SLT 2009 GMC Sierra 2500 HD WT 2009 GMC Sierra 3500 HD SLE 2009 GMC Sierra 3500 HD SLT 2009 GMC Sierra 3500 HD WT 2010 Chevrolet Express 3500 Base 2010 Chevrolet Express 3500 LS 2010 Chevrolet Express 3500 LT 2010 Chevrolet Silverado 2500 HD LT 2010 Chevrolet Silverado 2500 HD LTZ 2010 Chevrolet Silverado 2500 HD WT 2010 Chevrolet Silverado 3500 HD LT 2010 Chevrolet Silverado 3500 HD LTZ 2010 Chevrolet Silverado 3500 HD WT 2010 Dodge Ram 2500 Laramie 2010 Dodge Ram 2500 Power Wagon 2010 Dodge Ram 2500 SLT 2010 Dodge Ram 2500 ST 2010 Dodge Ram 2500 SXT 2010 Dodge Ram 2500 TRX 2010 Dodge Ram 3500 Laramie 2010 Dodge Ram 3500 SLT 2010 Dodge Ram 3500 ST 2010 GMC Sierra 2500 HD SLE 2010 GMC Sierra 2500 HD SLT 2010 GMC Sierra 2500 HD WT 2010 GMC Sierra 3500 HD SLE 2010 GMC Sierra 3500 HD SLT 2010 GMC Sierra 3500 HD WT 2011 Chevrolet Express 3500 Base 2011 Chevrolet Express 3500 LS 2011 Chevrolet Express 3500 LT 2011 Chevrolet Silverado 2500 HD LT 2011 Chevrolet Silverado 2500 HD LTZ 2011 Chevrolet Silverado 2500 HD WT 2011 Chevrolet Silverado 3500 HD LT 2011 Chevrolet Silverado 3500 HD LTZ 2011 Chevrolet Silverado 3500 HD WT 2011 GMC Sierra 2500 HD Denali 2011 GMC Sierra 2500 HD SLE 2011 GMC Sierra 2500 HD SLT 2011 GMC Sierra 2500 HD WT 2011 GMC Sierra 3500 HD Denali 2011 GMC Sierra 3500 HD SLE 2011 GMC Sierra 3500 HD SLT 2011 GMC Sierra 3500 HD WT 2011 Ram 2500 SLT 2012 Chevrolet Express 3500 Base 2012 Chevrolet Express 3500 LS 2012 Chevrolet Express 3500 LT 2012 Chevrolet Silverado 2500 HD LT 2012 Chevrolet Silverado 2500 HD LTZ 2012 Chevrolet Silverado 2500 HD WT 2012 Chevrolet Silverado 3500 HD LT 2012 Chevrolet Silverado 3500 HD LTZ 2012 Chevrolet Silverado 3500 HD WT 2012 GMC Sierra 2500 HD Denali 2012 GMC Sierra 2500 HD SLE 2012 GMC Sierra 2500 HD SLT 2012 GMC Sierra 2500 HD WT 2012 GMC Sierra 3500 HD Denali 2012 GMC Sierra 3500 HD SLE 2012 GMC Sierra 3500 HD SLT 2012 GMC Sierra 3500 HD WT 2012 Ram 2500 Laramie 2012 Ram 3500 Laramie 2012 Ram 3500 Laramie Longhorn 2012 Ram 3500 SLT 2012 Ram 3500 ST 2013 Chevrolet Express 3500 Base 2013 Chevrolet Express 3500 LS 2013 Chevrolet Express 3500 LT 2013 Chevrolet Silverado 2500 HD LT 2013 Chevrolet Silverado 2500 HD LTZ 2013 Chevrolet Silverado 2500 HD WT 2013 Chevrolet Silverado 3500 HD LT 2013 Chevrolet Silverado 3500 HD LTZ 2013 Chevrolet Silverado 3500 HD WT 2013 GMC Sierra 2500 HD Denali 2013 GMC Sierra 2500 HD SLE 2013 GMC Sierra 2500 HD SLT 2013 GMC Sierra 2500 HD WT 2013 GMC Sierra 3500 HD Denali 2013 GMC Sierra 3500 HD SLE 2013 GMC Sierra 3500 HD SLT 2013 GMC Sierra 3500 HD WT 2013 Ram 2500 Lone Star 2013 Ram 3500 Laramie Longhorn 2014 Chevrolet Silverado 2500 HD LT 2014 Chevrolet Silverado 2500 HD LTZ 2014 Chevrolet Silverado 2500 HD WT 2014 Chevrolet Silverado 3500 HD LT 2014 Chevrolet Silverado 3500 HD LTZ 2014 Chevrolet Silverado 3500 HD WT 2014 GMC Sierra 2500 HD Denali 2014 GMC Sierra 2500 HD SLE 2014 GMC Sierra 2500 HD SLT 2014 GMC Sierra 2500 HD WT 2014 GMC Sierra 3500 HD Denali 2014 GMC Sierra 3500 HD SLE 2014 GMC Sierra 3500 HD SLT 2014 GMC Sierra 3500 HD WT 2014 Ram 3500 Big Horn 2014 Ram 3500 Laramie 2014 Ram 3500 Laramie Limited 2014 Ram 3500 Laramie Longhorn 2014 Ram 3500 Lone Star 2014 Ram 3500 SLT 2014 Ram 3500 Tradesman 2015 Chevrolet Silverado 2500 HD High Country 2015 Chevrolet Silverado 2500 HD LT 2015 Chevrolet Silverado 2500 HD LTZ 2015 Chevrolet Silverado 2500 HD WT 2015 Chevrolet Silverado 3500 HD High Country 2015 Chevrolet Silverado 3500 HD LT 2015 Chevrolet Silverado 3500 HD LTZ 2015 Chevrolet Silverado 3500 HD WT 2015 GMC Sierra 2500 HD Base 2015 GMC Sierra 2500 HD Denali 2015 GMC Sierra 2500 HD SLE 2015 GMC Sierra 2500 HD SLT 2015 GMC Sierra 3500 HD Base 2015 GMC Sierra 3500 HD Denali 2015 GMC Sierra 3500 HD SLE 2015 GMC Sierra 3500 HD SLT 2015 Ram 3500 Big Horn 2015 Ram 3500 Laramie 2015 Ram 3500 Laramie Limited 2015 Ram 3500 Laramie Longhorn 2015 Ram 3500 Lone Star 2015 Ram 3500 SLT 2015 Ram 3500 Tradesman