Earls Swivel Seal® Hose End 804606ERL direct fit followed by a round Flow blh followed by a round Flow FX performance muffler that easily connects to the factory tailpipes Year Make Model Submodel Engine Size 1975 1983 Chevrolet K20 1977 1983 Chevrolet K30 1975 1982 Chevrolet LUV 1982 1983 Chevrolet S10 1975 1978 GMC C15 1979 1983 GMC C1500 1975 1978 GMC C25 1979 1983 GMC C2500 1975 1978 GMC C35 1979 1983 GMC C3500 1975 1978 GMC K15 1979 1983 GMC K1500 1975 1978 GMC K25 1979 1983 GMC K2500 1977 1978 GMC K35 1979 1983 GMC K3500 1982 1983 GMC S15 1973 1974 Chevrolet C10 Pickup 1973 1974 Chevrolet C20 Pickup 1973 1974 Chevrolet C30 Pickup 1973 1974 Chevrolet K10 Pickup 1973 1974 Chevrolet K20 Pickup 1973 1974 Chevrolet K30 Pickup 1975 1983 Chevrolet C10 1975 1983 Chevrolet C20 1975 1983 Chevrolet C30 1975 1983 Chevrolet K10 1973 1974 Chevrolet Luv Pickup 1973 1974 GMC C15 C1500 Pickup 1973 1974 GMC C25 C2500 Pickup 1973 1974 GMC C35 C3500 Pickup 1973 1974 GMC K15 K1500 Pickup 1973 1974 GMC K25 K2500 Pickup 1973 1974 GMC K35 K3500 Pickup Stainless Retention Pins Allow 360° Adjustment After Installation Application: