8 bolt set. Important Note: Many applications are engine-specific, so please confirm your vehicle and engine are on this list: Compatible with Chevrolet: Astro 1996-2005, Blazer (2003-2005, 2002 (V6 262 4.3L), 1996-2001), C1500 (1999, 1996-1998 (V8 350 5.7L, V8 305 5.0L, V6 262 4.3L), 1991-1993 (V8 454 7.4L)), C1500 Suburban 1996-1999 (V8 350 5.7L), C2500 (1999-2000 (V8 350 5.7L), 1996-1998 (V8 305 5.0L, V8 350 5.7L)), C2500 Suburban (1996-1999 (V8 350 5.7L), 1992-1995 (V8 454 7.4L)), C3500 (1996-2000 (V8 350 5.7L), 1991-1995 (V8 454 7.4L)), C3500HD 1991-1995 (V8 454 7.4L), K1500 1999, K1500 1996-1998 (V8 350 5.7L, V8 305 5.0L, V6 262 4.3L), K2500 1997-1998 (V8 305 5.0L, V8 350 5.7L), K2500 1996 (V8 350 5.7L), K2500 1991-1995 (V8 454 7.4L), K3500 1996-2000 (V8 350 5.7L), K3500 1991-1995 (V8 454 7.4L), P30 1996-1999 (V6 262 4.3L, V8 350 5.7L), P30 1996 (V8 454 7.4L), P30 1991-1995 (V8 454 7.4L), R2500 Suburban 1991 (V8 454 7.4L), S10 1996-2003 (V6 262 4.3L), Silverado 1500 2012-2013 (V6 262 4.3L, V6 262 4.3L (4300cc)), Silverado 1500 1999-2011 (V6 262 4.3L), Silverado 1500 Classic 2007 (V6 262 4.3L), Tahoe 1996-2000 (V8 350 5.7L), W3500 Tiltmaster 1996-2003 (V8 350 5.7L; GAS), Compatible with GMC: C1500 (1999, 1996-1998 (V8 350 5.7L, V8 305 5.0L, V6 262 4.3L)), C1500 Suburban 1996-1999 (V8 350 5.7L), C2500 1996-2000 (V8 350 5.7L), C2500 1991-1995 (V8 454 7.4L), C2500 Suburban 1992-1999 (V8 350 5.7L), C3500 1991-2000 (V8 350 5.7L), C3500 1991-1995 (V8 454 7.4L), C3500HD 1991-1995 (V8 454 7.4L), G3500 1996 (V8 454 7.4L, V8 454 7.4L), K1500 Suburban 1996-1999 (V8 350 5.7L), K2500 1999-2000 (V8 350 5.7L), K2500 1998 (V8 350 5.7L, V8 305 5.0L), K2500 1996-1997 (V8 350 5.7L), K2500 1991-1995 (V8 454 7.4L), Sierra 1500 1999-2013 (V6 262 4.3L), Sierra 1500 Classic 2007 (V6 262 4.3L), Sonoma 2004, Sonoma 1996-2003 (V6 262 4.3L), V3500 1991 (V8 454 7.4L), Yukon 2000 (V8 350 5.7L), Yukon 1998-1999, Yukon 1996-1997 (V8 350 5.7L). Reference: 11570082 12552096 8-12552-096-0