Home/Shop by Part/Drivetrain/Axle and Driveshaft/Differential Cover Narrow The Number Of Models Shown By Telling Us The Year Filter Models by Year 1999 2010 2009 2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998 1997 1996 1995 1994 1993 1992 1991 1990 1989 1988 1987 1986 1985 Choose your GMC Model C 1999 C1500 Truck Differential Cover 1999 C2500 Truck Differential Cover K 1999 K1500 Truck Differential Cover S 1999 S-15 Sonoma Differential Cover 1999 Savana 1500 Van Differential Cover 1999 Savana 3500 Van Differential Cover 1999 Sierra 1500 Differential Cover 1999 Sierra 2500 Differential Cover 1999 Suburban C1500 Differential Cover 1999 Suburban K1500 Differential Cover Y 1999 Yukon Differential Cover