Also check the owner's manual of the vehicle you are thinking of towing 4 wheels down, many front wheel drive vehicles are not flat towable with automatic transmissions. Don't take the word of a salesman or friend, check the owners manual.
Steve & Nancy
2005 Itasca Sunrise 33', W20 Chassis, Ultrapower, Henderson Trac Bar
2012 Chevy Captiva Sport AWD, ReadyBrute Elite Tow Bar, Blue Ox Base Plate, Protect-A-Tow