Abstract: An adjustable trailer hitch for use with automobiles, trucks, tractor-trailers, and other vehicles, and adapters for interfacing the trailer hitch to various trailer-vehicle combinations. The trailer hitch includes a first support member with least one generally vertical track, a second support member with a slide block assembly configured for slidable movement in the track, and a multi-directional dampening system operably connected between the first and second support members. In use, the trailer hitch interfaces the vehicle and the trailer, providing multidirectional dampening that mechanically isolates them from each other.