Size Chart
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| Year | Make | Model | Submodel |
|---|---|---|---|
| 1969-1974 | Chevrolet | Blazer | Base |
| 1978-1980 | Chevrolet | C10 | Big Ten |
| 1975-1981 | Chevrolet | C10 | Cheyenne |
| 1981-1986 | Chevrolet | C10 | Custom |
| 1975-1980 | Chevrolet | C10 | Custom Deluxe |
| 1981 | Chevrolet | C10 | Deluxe |
| 1975-1986 | Chevrolet | C10 | Scottsdale |
| 1975-1986 | Chevrolet | C10 | Silverado |
| 1963-1974 | Chevrolet | C10 Pickup | Base |
| 1967-1974 | Chevrolet | C10 Suburban | Base |
| 1981-1986 | Chevrolet | C10 Suburban | Custom |
| 1975-1980 | Chevrolet | C10 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C10 Suburban | Deluxe |
| 1975-1980,1982,1984-1986 | Chevrolet | C10 Suburban | Scottsdale |
| 1975-1980,1982-1986 | Chevrolet | C10 Suburban | Silverado |
| 1975-1981 | Chevrolet | C20 | Cheyenne |
| 1981-1986 | Chevrolet | C20 | Custom |
| 1975-1980 | Chevrolet | C20 | Custom Deluxe |
| 1981 | Chevrolet | C20 | Deluxe |
| 1975-1986 | Chevrolet | C20 | Scottsdale |
| 1975-1986 | Chevrolet | C20 | Silverado |
| 1963-1974 | Chevrolet | C20 Pickup | Base |
| 1967-1974 | Chevrolet | C20 Suburban | Base |
| 1981-1986 | Chevrolet | C20 Suburban | Custom |
| 1975-1980 | Chevrolet | C20 Suburban | Custom Deluxe |
| 1981 | Chevrolet | C20 Suburban | Deluxe |
| 1975-1980,1982,1984-1986 | Chevrolet | C20 Suburban | Scottsdale |
| 1975-1977,1979-1980,1982-1986 | Chevrolet | C20 Suburban | Silverado |
| 1975-1981 | Chevrolet | C30 | Cheyenne |
| 1981-1986 | Chevrolet | C30 | Custom |
| 1975-1980 | Chevrolet | C30 | Custom Deluxe |
| 1981 | Chevrolet | C30 | Deluxe |
| 1975-1986 | Chevrolet | C30 | Scottsdale |
| 1975-1986 | Chevrolet | C30 | Silverado |
| 1963-1974 | Chevrolet | C30 Pickup | Base |
| 1983 | Chevrolet | G10 | Base |
| 1975-1995 | Chevrolet | G10 | Beauville |
| 1981-1984,1986-1987 | Chevrolet | G10 | Bonaventure |
| 1975-1995 | Chevrolet | G10 | Chevy Van |
| 1975-1995 | Chevrolet | G10 | Sportvan |
| 1970-1974 | Chevrolet | G10 Van | Base |
| 1970-1974 | Chevrolet | G10 Van | Sportvan |
| 1975-1995 | Chevrolet | G20 | Beauville |
| 1983-1984 | Chevrolet | G20 | Bonaventure |
| 1975-1995 | Chevrolet | G20 | Chevy Van |
| 1978-1981 | Chevrolet | G20 | Nomad |
| 1975-1995 | Chevrolet | G20 | Sportvan |
| 1970-1974 | Chevrolet | G20 Van | Base |
| 1970-1974 | Chevrolet | G20 Van | Sportvan |
| 1975-1995 | Chevrolet | G30 | Beauville |
| 1983-1984 | Chevrolet | G30 | Bonaventure |
| 1975-1995 | Chevrolet | G30 | Chevy Van |
| 1975-1995 | Chevrolet | G30 | Hi-Cube |
| 1975-1995 | Chevrolet | G30 | Sportvan |
| 1970-1974 | Chevrolet | G30 Van | Base |
| 1970-1974 | Chevrolet | G30 Van | Sportvan |
| 1976 | Chevrolet | K5 Blazer | Base |
| 1975-1980 | Chevrolet | K5 Blazer | Cheyenne |
| 1981-1982 | Chevrolet | K5 Blazer | Custom |
| 1975,1977-1980 | Chevrolet | K5 Blazer | Custom Deluxe |
| 1981 | Chevrolet | K5 Blazer | Deluxe |
| 1978,1980-1982 | Chevrolet | K5 Blazer | Silverado |
| 1987 | Chevrolet | R10 | Custom Deluxe |
| 1987 | Chevrolet | R10 | Scottsdale |
| 1987 | Chevrolet | R10 | Silverado |
| 1987 | Chevrolet | R10 Suburban | Custom Deluxe |
| 1987-1988 | Chevrolet | R10 Suburban | Scottsdale |
| 1987-1988 | Chevrolet | R10 Suburban | Silverado |
| 1989-1991 | Chevrolet | R1500 Suburban | Scottsdale |
| 1989-1991 | Chevrolet | R1500 Suburban | Silverado |
| 1988 | Chevrolet | R20 | Cheyenne |
| 1987-1988 | Chevrolet | R20 | Custom Deluxe |
| 1987-1988 | Chevrolet | R20 | Scottsdale |
| 1987-1988 | Chevrolet | R20 | Silverado |
| 1987 | Chevrolet | R20 Suburban | Custom Deluxe |
| 1987-1988 | Chevrolet | R20 Suburban | Scottsdale |
| 1987-1988 | Chevrolet | R20 Suburban | Silverado |
| 1989 | Chevrolet | R2500 | Cheyenne |
| 1989 | Chevrolet | R2500 | Scottsdale |
| 1989 | Chevrolet | R2500 | Silverado |
| 1989-1991 | Chevrolet | R2500 Suburban | Scottsdale |
| 1989-1991 | Chevrolet | R2500 Suburban | Silverado |
| 1988 | Chevrolet | R30 | Cheyenne |
| 1987-1988 | Chevrolet | R30 | Custom Deluxe |
| 1987-1988 | Chevrolet | R30 | Scottsdale |
| 1987-1988 | Chevrolet | R30 | Silverado |
| 1989-1991 | Chevrolet | R3500 | Cheyenne |
| 1989-1990 | Chevrolet | R3500 | Scottsdale |
| 1989-1991 | Chevrolet | R3500 | Silverado |
| 1966 | GMC | 2500 | Base |
| 1963-1965 | GMC | 2500 Series | Base |
| 1975-1978 | GMC | C15 | Base |
| 1977-1978 | GMC | C15 | Heavy Half |
| 1975-1978 | GMC | C15 | High Sierra |
| 1977 | GMC | C15 | Indy Hauler |
| 1975-1978 | GMC | C15 | Sierra Classic |
| 1975-1978 | GMC | C15 | Sierra Grande |
| 1978 | GMC | C15 | Street Coupe |
| 1975-1978 | GMC | C15 Suburban | Base |
| 1975-1978 | GMC | C15 Suburban | High Sierra |
| 1975-1978 | GMC | C15 Suburban | Sierra Classic |
| 1975-1978 | GMC | C15 Suburban | Sierra Grande |
| 1967-1974 | GMC | C15/C1500 Pickup | Base |
| 1968-1974 | GMC | C15/C1500 Suburban | Base |
| 1979-1986 | GMC | C1500 | Base |
| 1979-1980 | GMC | C1500 | Heavy Half |
| 1979-1986 | GMC | C1500 | High Sierra |
| 1979-1986 | GMC | C1500 | Sierra Classic |
| 1979-1982 | GMC | C1500 | Sierra Grande |
| 1979-1982 | GMC | C1500 | Street Coupe |
| 1979-1986 | GMC | C1500 Suburban | Base |
| 1979-1986 | GMC | C1500 Suburban | High Sierra |
| 1979-1986 | GMC | C1500 Suburban | Sierra Classic |
| 1979-1982 | GMC | C1500 Suburban | Sierra Grande |
| 1975-1978 | GMC | C25 | Base |
| 1975-1978 | GMC | C25 | High Sierra |
| 1975-1978 | GMC | C25 | Sierra Classic |
| 1975-1978 | GMC | C25 | Sierra Grande |
| 1975-1978 | GMC | C25 Suburban | Base |
| 1975-1978 | GMC | C25 Suburban | High Sierra |
| 1975-1978 | GMC | C25 Suburban | Sierra Classic |
| 1975-1978 | GMC | C25 Suburban | Sierra Grande |
| 1967-1974 | GMC | C25/C2500 Pickup | Base |
| 1968-1974 | GMC | C25/C2500 Suburban | Base |
| 1979-1986 | GMC | C2500 | Base |
| 1979-1986 | GMC | C2500 | High Sierra |
| 1979-1986 | GMC | C2500 | Sierra Classic |
| 1979-1982 | GMC | C2500 | Sierra Grande |
| 1979-1986 | GMC | C2500 Suburban | Base |
| 1979-1986 | GMC | C2500 Suburban | High Sierra |
| 1979-1986 | GMC | C2500 Suburban | Sierra Classic |
| 1979-1982 | GMC | C2500 Suburban | Sierra Grande |
| 1975-1978 | GMC | C35 | Base |
| 1975-1978 | GMC | C35 | High Sierra |
| 1975-1978 | GMC | C35 | Sierra Classic |
| 1975-1978 | GMC | C35 | Sierra Grande |
| 1967-1974 | GMC | C35/C3500 Pickup | Base |
| 1979-1986 | GMC | C3500 | Base |
| 1979-1986 | GMC | C3500 | High Sierra |
| 1979-1986 | GMC | C3500 | Sierra Classic |
| 1979-1982 | GMC | C3500 | Sierra Grande |
| 1975-1978 | GMC | G15 | Rally |
| 1975-1978 | GMC | G15 | Rally STX |
| 1975-1978 | GMC | G15 | Vandura |
| 1970-1971 | GMC | G15/G1500 Van | Base |
| 1971-1974 | GMC | G15/G1500 Van | Rally |
| 1970-1974 | GMC | G15/G1500 Van | Vandura |
| 1979-1995 | GMC | G1500 | Rally |
| 1983-1984 | GMC | G1500 | Rally Custom |
| 1979-1995 | GMC | G1500 | Rally STX |
| 1979-1995 | GMC | G1500 | Vandura |
| 1975-1978 | GMC | G25 | Rally |
| 1975-1978 | GMC | G25 | Rally STX |
| 1975-1978 | GMC | G25 | Vandura |
| 1970-1972 | GMC | G25/G2500 Van | Base |
| 1971-1974 | GMC | G25/G2500 Van | Rally |
| 1970-1974 | GMC | G25/G2500 Van | Vandura |
| 1979-1995 | GMC | G2500 | Rally |
| 1983-1984 | GMC | G2500 | Rally Custom |
| 1979-1995 | GMC | G2500 | Rally STX |
| 1979-1995 | GMC | G2500 | Vandura |
| 1975-1978 | GMC | G35 | Magnavan |
| 1975-1978 | GMC | G35 | Rally |
| 1975-1978 | GMC | G35 | Rally Camper Special |
| 1975-1978 | GMC | G35 | Rally STX |
| 1975-1978 | GMC | G35 | Vandura |
| 1975-1978 | GMC | G35 | Vandura Special |
| 1970-1971,1974 | GMC | G35/G3500 Van | Base |
| 1971-1974 | GMC | G35/G3500 Van | Rally |
| 1971-1974 | GMC | G35/G3500 Van | Vandura |
| 1979-1995 | GMC | G3500 | Magnavan |
| 1979-1995 | GMC | G3500 | Rally |
| 1979-1995 | GMC | G3500 | Rally Camper Special |
| 1981-1988 | GMC | G3500 | Rally Custom |
| 1979-1995 | GMC | G3500 | Rally STX |
| 1979-1995 | GMC | G3500 | Vandura |
| 1979-1995 | GMC | G3500 | Vandura Special |
| 1970-1982 | GMC | Jimmy | Base |
| 1975-1982 | GMC | Jimmy | High Sierra |
| 1975-1976,1978-1982 | GMC | Jimmy | Sierra Classic |
| 1975-1982 | GMC | Jimmy | Sierra Grande |
| 1978-1982 | GMC | Jimmy | Street Coupe |
| 1987 | GMC | R1500 | Base |
| 1987 | GMC | R1500 | High Sierra |
| 1987 | GMC | R1500 | Sierra Classic |
| 1987-1991 | GMC | R1500 Suburban | Base |
| 1987 | GMC | R1500 Suburban | High Sierra |
| 1987-1989 | GMC | R1500 Suburban | Sierra Classic |
| 1990 | GMC | R1500 Suburban | SLE |
| 1987-1989 | GMC | R2500 | Base |
| 1987-1989 | GMC | R2500 | High Sierra |
| 1987-1989 | GMC | R2500 | Sierra Classic |
| 1987-1991 | GMC | R2500 Suburban | Base |
| 1987 | GMC | R2500 Suburban | High Sierra |
| 1987-1989 | GMC | R2500 Suburban | Sierra Classic |
| 1990 | GMC | R2500 Suburban | SLE |
| 1987-1991 | GMC | R3500 | Base |
| 1987-1989 | GMC | R3500 | High Sierra |
| 1987-1989 | GMC | R3500 | Sierra Classic |
| 1990-1991 | GMC | R3500 | SLE |
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