How do you tell what kind of rear end differential does the 2005 f350 super duty have?

To determine the type of rear end differential in a 2005 Ford F-350 Super Duty, you can check the vehicle's owner’s manual or the build sheet if available. Another method is to look for the axle code located on the driver's side door jamb on a sticker; it indicates the specific differential type. Additionally, you can visually inspect the rear differential housing or consult the vehicle’s VIN for detailed specifications.