4 bolts, 4 studs, 4 nuts. Important Note: Many applications are engine-specific, so please confirm your vehicle and engine are on this list: Compatible with Chevrolet: Astro 1991-1995, Astro 1987-1990 (V6 262 4.3L), Blazer 1995, Blazer 1994 (V8 350 5.7L), Blazer (1992-1993, 1989-1991 (V8 350 5.7L)), C1500 1988-1995 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), C1500 Suburban 1995 (V8 350 5.7L), C1500 Suburban 1992-1994, C2500 1988-1995 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), C3500 1988-1995 (V8 350 5.7L), C3500HD 1991-1995 (V8 350 5.7L), Camaro 1988-1992 (V8 305 5.0L, V8 350 5.7L), Caprice 1992-1993 (V6 262 4.3L), Caprice 1991 (V8 305 5.0L, V8 350 5.7L), Caprice 1990 (V6 262 4.3L, V8 305 5.0L, V8 307 5.0L, V8 350 5.7L), K1500 1988-1995 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), K1500 Suburban 1995 (V8 350 5.7L), K1500 Suburban 1993-1994, K1500 Suburban 1992, K2500 1988-1995 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), K3500 1988-1995 (V8 350 5.7L), S10 1988-1995 (V6 262 4.3L), S10 Blazer 1990-1994, S10 Blazer 1988-1989 (V6 262 4.3L), Tahoe 1995 (V8 350 5.7L), V10 1987 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), ; Compatible with GMC: C1500 1988-1995 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), C2500 1988-1995 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), C2500 Suburban 1992-1995 (V8 350 5.7L), C3500 1988-1995 (V8 350 5.7L), K1500 1988-1995 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), K1500 Suburban 1995 (V8 350 5.7L), K1500 Suburban 1992-1994, K2500 1988-1995 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), K3500 1988-1995 (V8 350 5.7L), S15 Jimmy 1990-1991, S15 Jimmy 1988-1990 (V6 262 4.3L), Safari 1991-1995, Safari 1987-1990 (V6 262 4.3L), Sonoma 1991-1995 (V6 262 4.3L), Syclone 1991, Typhoon 1992-1993, V1500 1987 (V6 262 4.3L, V8 305 5.0L, V8 350 5.7L), V1500 Suburban 1989-1991 (V8 350 5.7L), V2500 1987 (V8 350 5.7L), V2500 Suburban 1989-1991 (V8 350 5.7L), V3500 1987-1991 (V8 350 5.7L), Yukon 1984-1995 (V8 350 5.7L), Yukon 1992-1993; (Reference: 11514602 12338107 9442012).