This GMB Engine Cooling Fan Clutch fits your 1978 1977 GMC K35 4.8L 5.7L L6 V8 and is perfect for a tune up or performance upgrade. .
GMB Engine Cooling Fan Clutch for 1968-1974 GMC K25 K2500 Suburban 4.1L 4.8L pm
GMB Engine Cooling Fan Clutch for 1975-1978 GMC C35 4.8L 5.0L 5.7L L6 V8 - gu
GMB Engine Cooling Fan Clutch for 1975-1978 GMC G15 4.1L L6 - Belts Motor ez
GMB Engine Cooling Fan Clutch for 1981-1985 Jeep Scrambler 2.5L L4 - Belts es
GMB Engine Cooling Fan Clutch for 1978-1983 Chevrolet Malibu 3.3L 3.8L 4.4L vp
GMB Engine Cooling Fan Clutch for 1981-1983 Jeep Wagoneer 4.2L L6 - Belts ay
