Rubber fuel line hose for 1939-40 8 cylinder and 1941-48 6 cylinder models. This is the hose that connects the steel fuel line on the frame rail to the fuel pump.
Steel vacuum line for 1949-50 Oldsmobile 303 V8 with 2 barrel carburetor. This is the line which runs from the fuel pump to the windshield wiper motor.
Steel vacuum line for 1954-56 Oldsmobile 324 V8 with 4 barrel carburetor and power brakes. This is the line which runs from the carburetor to the brake booster.