Carfax will give you a complete history of your vehicle's current and past owners using its VIN. Unfortunately, it may not disclose the person's names or provide a way to contact them. You can only obtain the specific details if the owner's identity is necessary for legal actions.
What gear ratio is f150?
Write down the number in the lower left-hand corner of the tag. It will look like "3.23" or "3.50." This is the gear ratio. If there is an "L" in the number, for instance "3L23," it is a limited slip differential.