back in the early 60's i was in an automotive class in high school... we had a flood in the area and alot of cars under water, so the instructor did a course on what you could do to recover the car.... take out battery, throw it away... remove spark plugs, oil, rebuild carb. drain the trans(mainly standard back then), the rear end(dont have them anymore)...drain the gas tank,, alot of stuff people dont think of and will try to start a car and blow the engine that is full of water.....