Fits 1981 1991 Chevrolet GMC Truck Transmission Oil Cooler Line OCL428 schultz exhaust This direct fit catalytic converter is UNBRANDED This direct fit catalytic converter is designed to fit the 1990 1994 Nissan D21 Our Hi Tek deep transmission pans are constructed from A356 T6 aluminum and are cast with thick external fins adding additional strength and increased cooling properties Year Make Model 1981 1991 Chevrolet C10 1981 1991 Chevrolet C20 1981 1991 Chevrolet C30 1981 1991 Chevrolet K10 1981 1991 Chevrolet K20 1981 1991 Chevrolet K30 1981 1988 Gmc Astro 1981 1991 Gmc B6000 1981 1988 Gmc Brigadier 1981 1991 Gmc C1500 1981 1986 Gmc C1500 Suburban 1981 1991 Gmc C2500 1981 1986 Gmc C2500 Suburban 1981 1991 Gmc C3500 1981 1990 Gmc C5000 1981 1990 Gmc C6000 1981 1990 Gmc C7000 1981 1987 Gmc Caballero 1981 1991 Gmc G1500 1981 1991 Gmc G2500 1981 1991 Gmc G3500 1981 1988 Gmc General 1981 1991 Gmc Jimmy 1981 1991 Gmc K1500 1981 1986 Gmc K1500 Suburban 1981 1991 Gmc K2500 1981 1986 Gmc K2500 Suburban 1981 1991 Gmc K3500 1981 1989 Gmc P2500 1981 1991 Gmc P3500 1981 1990 Gmc P4500 1981 1987 Gmc Transit Bus 1982 1990 Gmc S15 1983 1990 Gmc P60 1983 1990 Gmc P6000 1983 1991 Gmc S15 Jimmy 1984 1991 Gmc W7500 Forward 1985 1991 Gmc Safari 1987 Gmc R1500 1987 1991 Gmc R1500 Suburban 1987 1989 Gmc R2500 1987 1991 Gmc R2500 Suburban 1987 1991 Gmc R3500 1987 Gmc V1500 1987 1991 Gmc V1500 Suburban 1987 Gmc V2500 1987 1991 Gmc V2500 Suburban 1987 1991 Gmc V3500 1987 1991 Gmc W6500 Forward 1988 1991 Gmc W5500 Forward 1989 1991 Gmc Tracker 1990 1991 Gmc C5000 Topkick 1990 1991 Gmc C6000 Topkick 1990 1991 Gmc C7000 Topkick 1991 Gmc C3500Hd 1991 Gmc Sonoma 1991 Gmc Syclone 4 WD Diesel