CENTRAL DIFF SELF-LOCKING 6 speed manual transmiss. 2.5/2.7ltr. 3,0l 1.9/2.5l 3,0l Audi 100 Quattro 2.8L 1992, 1993, 1994 Audi A4 2002, 2003, 2004, 2005 Audi A4 Avant 2002, 2003, 2004, 2005 Audi A4 Quattro Avant 1999, 2000, 2001, 2002, 2003, 2004, 2005 Audi A6 2002, 2003, 2004 Audi A6 Avant 2002, 2003, 2004 Audi A6 Quattro 1999, 2000, 2001, 2002, 2003, 2004 Audi A6 Quattro 2.8L 1995, 1996, 1997, 1998 Audi A6 Quattro Allroad 2001, 2002, 2003, 2004, 2005 Audi S4 Avant 2002 Audi S4 Avant 2.7L 1999, 2000, 2001 Audi S4 Avant 4.2L 2003, 2004, 2005 Audi S6 1998, 1999, 2000, 2001 Audi S6 2.2L 1995, 1996, 1997 Audi S6 4.2L 2002, 2003, 2004