305 8cyl gmc vandura 2500 picture of the 2 transmission tubes that go from the engine to the transmission?

I'm unable to provide pictures directly, but in a 305 8-cylinder GMC Vandura 2500, the two transmission tubes you're referring to are likely the cooler lines that connect the transmission to the engine's radiator or external cooler. These tubes are typically metal or rubber and run along the side of the transmission. For a visual reference, you might check repair manuals or online forums dedicated to GMC Vandura vehicles.