Windshield Wiper Switch 1988 94 Chev Truck Various With Tilt Wheel # DS494 Rate_Engine Knock outs in the air cleaner Knock outs in the air cleaner base for use with Edelbrock crank case ventilation adapters (sold separately) are provided CHEVROLET BLAZER 1973 1991 CHEVROLET C10 PICKUP 1973 1986 CHEVROLET C10 SUBURBAN 1973 1986 CHEVROLET C20 SUBURBAN 1973 1986 CHEVROLET K5 BLAZER 1975 1984 CHEVROLET R10 SUBURBAN 1987 1988 CHEVROLET R1500 SUBURBAN 1989 1991 CHEVROLET R20 SUBURBAN 1987 1988 CHEVROLET R2500 SUBURBAN 1989 1991 GMC C15 PICKUP 1975 1978 GMC C15 SUBURBAN 1975 1978 GMC C15 C1500 PICKUP 1973 1974 GMC C15 C1500 SUBURBAN 1973 1974 GMC C1500 PICKUP 1979 1986 GMC C1500 SUBURBAN 1979 1986 GMC C25 SUBURBAN 1975 1978 GMC C25 C2500 SUBURBAN 1973 1974 GMC C2500 SUBURBAN 1979 1986 GMC R1500 SUBURBAN 1987 1991 GMC R2500 SUBURBAN 1987 1991 Windshield Wiper Switch 1988 94 Chev Truck Various With Tilt Wheel # DS494