However, precise location can vary slightly depending on the engine (3.0L, 3.3L, or 3.8L). You'll need to consult a repair manual specific to your Caravan's engine for the most accurate placement. A picture diagram in a repair manual will be invaluable.
Searching online for "[Your Caravan's engine size] 1997 Dodge Caravan crankshaft sensor location" along with a visual search (images) will also likely yield helpful results. Be sure to double-check the images match your engine.