Product InformationYukon Mighty Seals use the latest design and manufacturing technologies to produce a precision fit that seals tight and lasts for years to come. Fits AAM 10.5” and 11.5”. Yukon Mighty Seals use the latest manufacturing technologies for maximum fluid retention for years of service and long life. 2014 Ram 2500 / 3500 require a larger seal with 4.290″ OD. Yukon part # YMSC1025 10.5AAM & 11.5AAM GM & DODGE PINION SEAL, 3.53″ OD (VITON) OE DESIGNFits: Chevrolet Express 3500 Base 1996 to 2010 Chevrolet Express 3500 LS 1996 to 2010 Chevrolet Express 3500 LT 2006 to 2010 Chevrolet Silverado 2500 Base 1999 to 2004 Chevrolet Silverado 2500 LS 1999 to 2004 Chevrolet Silverado 2500 LT 1999 to 2004 Chevrolet Silverado 2500 WT 2004 Chevrolet Silverado 2500 HD Base 2001 to 2005 Chevrolet Silverado 2500 HD LS 2001 to 2006 Chevrolet Silverado 2500 HD LT 2001 to 2011 Chevrolet Silverado 2500 HD LTZ 2007 to 2011 Chevrolet Silverado 2500 HD WT 2003 to 2011 Chevrolet Silverado 2500 HD Classic LS 2007 Chevrolet Silverado 2500 HD Classic LT 2007 Chevrolet Silverado 2500 HD Classic WT 2007 Chevrolet Silverado 3500 Base 2001 to 2005 Chevrolet Silverado 3500 LS 2001 to 2006 Chevrolet Silverado 3500 LT 2001 to 2006 Chevrolet Silverado 3500 WT 2004 Chevrolet Silverado 3500 WT 2006 Chevrolet Silverado 3500 Classic LS 2007 Chevrolet Silverado 3500 Classic LT 2007 Chevrolet Silverado 3500 Classic WT 2007 Chevrolet Silverado 3500 HD LT 2007 to 2011 Chevrolet Silverado 3500 HD LTZ 2007 to 2011 Chevrolet Silverado 3500 HD WT 2007 to 2011 Dodge Ram 1500 Laramie 2006 to 2010 Dodge Ram 1500 SLT 2006 to 2010 Dodge Ram 1500 Sport 2006 to 2007 Dodge Ram 1500 Sport 2009 to 2010 Dodge Ram 1500 SRT-10 2006 Dodge Ram 1500 ST 2005 to 2010 Dodge Ram 1500 SXT 2008 Dodge Ram 1500 TRX 2009 to 2010 Dodge Ram 1500 TRX4 2006 to 2007 Dodge Ram 1500 TRX4 2009 to 2010 Dodge Ram 2500 Laramie 2003 Dodge Ram 2500 Laramie 2005 to 2010 Dodge Ram 2500 Power Wagon 2006 to 2010 Dodge Ram 2500 SLT 2003 to 2010 Dodge Ram 2500 Sport 2006 to 2007 Dodge Ram 2500 ST 2003 to 2010 Dodge Ram 2500 SXT 2008 to 2010 Dodge Ram 2500 TRX 2010 Dodge Ram 2500 TRX4 2006 to 2007 Dodge Ram 2500 Van Base 2003 Dodge Ram 3500 Laramie 2003 to 2010 Dodge Ram 3500 SLT 2003 to 2010 Dodge Ram 3500 Sport 2006 to 2007 Dodge Ram 3500 ST 2003 to 2010 Dodge Ram 3500 SXT 2008 to 2009 Dodge Ram 3500 TRX4 2007 GMC Savana 3500 Base 1996 to 2008 GMC Savana 3500 Base 2011 GMC Savana 3500 LS 2006 to 2009 GMC Savana 3500 LS 2011 GMC Savana 3500 LT 2006 to 2008 GMC Savana 3500 LT 2010 to 2011 GMC Savana 3500 SLE 1996 to 2000 GMC Savana 3500 SLE 2003 to 2005 GMC Savana 3500 SLT 2001 to 2002 GMC Sierra 2500 Base 2002 to 2004 GMC Sierra 2500 SL 1999 to 2002 GMC Sierra 2500 SLE 1999 to 2004 GMC Sierra 2500 SLT 1999 to 2004 GMC Sierra 2500 WT 2003 to 2004 GMC Sierra 2500 HD Base 2002 to 2005 GMC Sierra 2500 HD Denali 2011 GMC Sierra 2500 HD SL 2001 to 2002 GMC Sierra 2500 HD SL 2006 GMC Sierra 2500 HD SLE 2001 to 2011 GMC Sierra 2500 HD SLT 2001 to 2011 GMC Sierra 2500 HD WT 2003 to 2011 GMC Sierra 2500 HD Classic SL 2007 GMC Sierra 2500 HD Classic SLE 2007 GMC Sierra 2500 HD Classic SLT 2007 GMC Sierra 2500 HD Classic WT 2007 GMC Sierra 3500 Base 2002 to 2005 GMC Sierra 3500 SL 2001 to 2002 GMC Sierra 3500 SL 2006 GMC Sierra 3500 SLE 2001 to 2006 GMC Sierra 3500 SLT 2001 to 2006 GMC Sierra 3500 WT 2004 to 2006 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 Denali 2011 GMC Sierra 3500 HD SLE 2007 to 2011 GMC Sierra 3500 HD SLT 2007 to 2011 GMC Sierra 3500 HD WT 2007 to 2011 Ram 1500 Big Horn 2011 to 2012 Ram 1500 Express 2012 Ram 1500 Laramie 2011 to 2012 Ram 1500 Laramie Longhorn 2011 to 2012 Ram 1500 Outdoorsman 2011 to 2012 Ram 1500 SLT 2011 to 2012 Ram 1500 Sport 2011 to 2012 Ram 1500 ST 2011 to 2012 Ram 1500 Tradesman 2011 to 2012 Ram 1500 Tradesman HD 2012 Ram 2500 Big Horn 2013 Ram 2500 Laramie 2011 to 2013 Ram 2500 Laramie Longhorn 2011 to 2013 Ram 2500 Lone Star 2013 Ram 2500 Outdoorsman 2012 to 2013 Ram 2500 Power Wagon 2011 to 2013 Ram 2500 SLT 2011 to 2013 Ram 2500 ST 2011 to 2013 Ram 2500 Tradesman 2013 Ram 3500 Big Horn 2013 to 2014 Ram 3500 Laramie 2011 to 2014 Ram 3500 Laramie Limited 2014 Ram 3500 Laramie Longhorn 2011 to 2014 Ram 3500 Lone Star 2013 to 2014 Ram 3500 SLT 2011 to 2014 Ram 3500 ST 2011 to 2013 Ram 3500 Tradesman 2013 to 2014