Detachable Gooseneck Trailers are engineered for strength, durability and safety. A load carrying bed has its rear end pivotally connected to a bracket arm extending below a rear wheel assembly. The rear wheel assembly is pivotally mounted so that the load carry bed may touch the ground at the rear end, the said bed being free at the front end so that it may lie flat on the ground. A device for raising the rear end and holding it in a raised position is combined with rear wheel assembly.