To find the correct battery size for *your* Ford Transit 2.5, you should:
* Check the battery itself: The battery usually has its group size printed on a label. This is the most reliable method.
* Consult your owner's manual: The owner's manual will specify the recommended battery size and type.
* Check the Ford parts website: Using your vehicle's VIN number on the Ford parts website will show you the correct battery for your specific vehicle.
* Visit a local auto parts store: They can look up the correct battery size for your vehicle based on the year, make, and model.
Don't rely on general information online; always check your specific vehicle's documentation or consult a professional.