A hub bearing on a car servers two primary purposes, including allowing the hub and attached components to rotate freely, and also to keep the wheel tire and rotating mass attached to the car. Learn about the two types of hub bearings, including unit bearings and wheel bearings, with help from an auto mechanic in this free video on auto parts. Expert: JB Hebert Contact: www.wrxtra.com Bio: JB Hebert is a machinist, metal fabricator, and auto mechanic who has been fixing and modifying all things mechanical for over 20 years. Filmmaker: David Pakman

www.1aauto.com 1A Auto demonstrates how to get open a tailgate that is stuck closed on a 1998 Dodge Durango. The basic procedure shown could be applied to almost any vehicle with a stuck tailgate.