All vehicles receive a VIN — Vehicle Identification Number — during the manufacturing process. The number, a 17-digit number unique to each separate vehicle, represents basic information relating to the vehicle. By running a VIN search you can learn pertinent information regarding the ownership history, odometer readings and parts in the vehicle, including the transmission.
Visit the CARFAX website to run a VIN search. Simply enter the VIN of the vehicle in question into the search box on the CARFAX homepage and run a search to obtain a detailed report on the vehicle in question. CARFAX, one of the leading providers of Vehicle History Reports online, offers single reports for $34.99 as of January 2011.