![](http://cdn-5d94ca75f911c90950a673c0.closte.com/wp-content/uploads/2019/10/jockey-wheel.jpg)
The extended jockey wheel makes levelling the van more convenient in undulating situations. As opposed to say a fixed electric jacking system, the jockey wheel makes coupling a “pin” style hitch such as the DO-35 much easier by providing some movement in situations of slight misalignment between coupling & pin.