Rear Main Crankshaft Seal Installer.
For 2001, 2002, 2003, 2004, 2005, 2006, 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015, 2016 GM 6.6L Duramax LB7 LLY LBZ LMM LML
Replaces# 99-1043, J-44642
Press fit rear seal to engine block & crankshaft for proper fitment of inner & outer seal body. Services GM/ISUZU 6.6L Duramax 2001-2016 GMT800, 2500HD & 3500
Installation instructions: Set new seal on inner body of tool. Attach outside ring of tool to the end of the crankshaft assembly, turn forcing screw to press in new seal