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Fuel hose isn't rated fore hydraulic pressure.Here is what you need http://www.autozone.com/autozone/parts/Brakeware-Clutch-Hydraulic-Hose/1986-Chevrolet-C10-1-2-ton-P-U-2WD/_/N-ij11lZ6o3a9?itemIdentifier=976160_0_0_
Ex co-workers from AZ said just regular fuel line will be fine.