The 1957-2002 GM Car & Truck 2.5" Exhaust Pipe Donut / Seal is a high-temperature gasket designed to ensure a tight, leak-proof connection between exhaust pipe flanges in classic and modern GM vehicles. Perfect for ball-and-socket or flange-style connections, this exhaust seal absorbs heat and vibration while maintaining proper backpressure and exhaust flow. Built from high-quality, heat-resistant materials, it fits 2.5-inch diameter exhaust systems and is ideal for both restoration and custom applications.
Installation:
Difficulty: 2/5 – Requires basic tools and access to exhaust flange connections.
Instructions: Remove the old donut or seal and clean the flange surfaces thoroughly. Insert the new donut between the exhaust flanges or into the ball joint. Reassemble and tighten bolts evenly to compress the seal and ensure a snug fit. Start the engine and inspect for any leaks or rattles, adjusting as necessary.
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| Make | Model | Years |
| Chevrolet | 3100 | 1959 |
| Chevrolet | 3B | 1959 |
| Chevrolet | 3C | 1959 |
| Chevrolet | 3D | 1959 |
| Chevrolet | 3E | 1959 |
| Chevrolet | 3F | 1959 |
| Chevrolet | 3G | 1959 |
| Chevrolet | Blazer | 1969 - 1990 |
| Chevrolet | C10 Panel | 1960 - 1967 |
| Chevrolet | C10 Pickup | 1960 - 1974 |
| Chevrolet | C10 Suburban | 1967 - 1986 |
| Chevrolet | C10 | 1975 - 1986 |
| Chevrolet | C1500 | 1988 - 1990 |
| Chevrolet | C15 | 1982 - 1988 |
| Chevrolet | C20 Panel | 1967 |
| Chevrolet | C20 Pickup | 1960 - 1974 |
| Chevrolet | C20 Suburban | 1967 - 1986 |
| Chevrolet | C20 | 1975 - 1987 |
| Chevrolet | C2500 | 1988 - 1990 |
| Chevrolet | C30 Panel | 1960 - 1966 |
| Chevrolet | C30 Pickup | 1960 - 1974 |
| Chevrolet | C30 | 1975 - 1986 |
| Chevrolet | C3500 | 1988 - 1990 |
| Chevrolet | C35 | 1983 - 1990 |
| Chevrolet | C40 | 1960 - 1962 |
| Chevrolet | Corvair Truck | 1961 - 1964 |
| Chevrolet | El Camino | 1959 - 1987 |
| Chevrolet | K10 Pickup | 1960 - 1974 |
| Chevrolet | K10 Suburban | 1967 - 1986 |
| Chevrolet | K10 | 1975 - 1986 |
| Chevrolet | K1500 | 1988 - 1990 |
| Chevrolet | K20 Panel | 1967 |
| Chevrolet | K20 Pickup | 1960 - 1974 |
| Chevrolet | K20 Suburban | 1967 - 1986 |
| Chevrolet | K20 | 1975 - 1986 |
| Chevrolet | K2500 | 1988 - 1990 |
| Chevrolet | K30 Pickup | 1968 - 1974 |
| Chevrolet | K30 | 1977 - 1986 |
| Chevrolet | K3500 | 1988 - 1990 |
| Chevrolet | K5 Blazer | 1975 - 1986 |
| Chevrolet | LUV | 1975 - 1982 |
| Chevrolet | Luv Pickup | 1972 - 1974 |
| Chevrolet | P10 Series | 1960 - 1967 |
| Chevrolet | P20 Series | 1960 - 1967 |
| Chevrolet | P30 Series | 1960 - 1967 |
| Chevrolet | R10 Suburban | 1987 - 1988 |
| Chevrolet | R10 | 1987 |
| Chevrolet | R1500 Suburban | 1989 - 1990 |
| Chevrolet | R20 Suburban | 1987 - 1988 |
| Chevrolet | R20 | 1987 - 1988 |
| Chevrolet | R2500 Suburban | 1989 - 1990 |
| Chevrolet | R2500 | 1989 |
| Chevrolet | R30 | 1987 - 1988 |
| Chevrolet | R3500 | 1989 - 1990 |
| Chevrolet | S10 Blazer | 1983 - 1990 |
| Chevrolet | S10 | 1982 - 1990 |
| Chevrolet | Sedan Delivery | 1957 - 1960 |
| Chevrolet | Suburban | 1957 - 1990 |
| Chevrolet | Tracker | 1989 - 1990 |
| Chevrolet | Truck | 1957 - 1960 |
| Chevrolet | V10 Suburban | 1987 - 1988 |
| Chevrolet | V10 | 1987 |
| Chevrolet | V1500 Suburban | 1989 - 1990 |
| Chevrolet | V20 Suburban | 1987 - 1988 |
| Chevrolet | V20 | 1987 |
| Chevrolet | V2500 Suburban | 1989 - 1990 |
| Chevrolet | V30 | 1987 - 1988 |
| Chevrolet | V3500 | 1989 - 1990 |
| GMC | C15 Suburban | 1975 - 1978 |
| GMC | C15/C1500 Pickup | 1968 - 1974 |
| GMC | C15/C1500 Suburban | 1968 - 1974 |
| GMC | C1500 Suburban | 1979 - 1999 |
| GMC | C1500 | 1979 - 1999 |
| GMC | C15 | 1975 - 1978 |
| GMC | C25 Suburban | 1975 - 1978 |
| GMC | C25/C2500 Pickup | 1968 - 1974 |
| GMC | C25/C2500 Suburban | 1968 - 1974 |
| GMC | C2500 Suburban | 1979 - 1999 |
| GMC | C2500 | 1979 - 2000 |
| GMC | C25 | 1975 - 1978 |
| GMC | C35/C3500 Pickup | 1968 - 1974 |
| GMC | C3500 | 1979 - 2000 |
| GMC | C35 | 1975 - 1978 |
| GMC | Caballero | 1978 - 1987 |
| GMC | Envoy XL | 2002 |
| GMC | Envoy | 2002 |
| GMC | Jimmy | 1970 - 2002 |
| GMC | K15 Suburban | 1975 - 1978 |
| GMC | K15/K1500 Pickup | 1968 - 1974 |
| GMC | K15/K1500 Suburban | 1968 - 1974 |
| GMC | K1500 Suburban | 1979 - 1999 |
| GMC | K1500 | 1979 - 1999 |
| GMC | K15 | 1975 - 1978 |
| GMC | K25 Suburban | 1975 - 1978 |
| GMC | K25/K2500 Pickup | 1968 - 1974 |
| GMC | K25/K2500 Suburban | 1968 - 1974 |
| GMC | K2500 Suburban | 1979 - 1999 |
| GMC | K2500 | 1979 - 2000 |
| GMC | K25 | 1975 - 1978 |
| GMC | K35/K3500 Pickup | 1968 - 1974 |
| GMC | K3500 | 1979 - 2000 |
| GMC | K35 | 1977 - 1978 |
| GMC | R1500 Suburban | 1987 - 1991 |
| GMC | R1500 | 1987 |
| GMC | R2500 Suburban | 1987 - 1991 |
| GMC | R2500 | 1987 - 1989 |
| GMC | R3500 | 1987 - 1991 |
| GMC | S15 Jimmy | 1983 - 1991 |
| GMC | S15 | 1982 - 1990 |
| GMC | Sierra 1500 HD | 2001 - 2002 |
| GMC | Sierra 1500 | 1999 - 2002 |
| GMC | Sierra 2500 HD | 2001 - 2002 |
| GMC | Sierra 2500 | 1999 - 2002 |
| GMC | Sierra 3500 | 2001 - 2002 |
| GMC | Sonoma | 1991 - 2002 |
| GMC | Sprint | 1971 - 1977 |
| GMC | Syclone | 1991 |
| GMC | Tracker | 1989 - 1991 |
| GMC | Transmode | 1973 - 1974 |
| GMC | Typhoon | 1992 - 1993 |
| GMC | V1500 Suburban | 1987 - 1991 |
| GMC | V1500 | 1987 |
| GMC | V2500 Suburban | 1987 - 1991 |
| GMC | V2500 | 1987 |
| GMC | V3500 | 1987 - 1991 |
| GMC | Yukon XL 1500 | 2000 - 2002 |
| GMC | Yukon XL 2500 | 2000 - 2002 |
| GMC | Yukon | 1992 - 2002 |
