A device for adjusting the height of a vehicle body, containing a movement thread, which is arranged between the vehicle body and a wheel carrier. The movement thread has two threaded parts that can be rotated in relation to each other, which are formed by a spindle and a spindle nut, and a locking apparatus, which bridges the movement thread at at least two axial positions in a positive-locking manner and which has a locking sleeve having locking stops arranged over the periphery at different axial positions. The device is characterized in that the locking sleeve is modularly formed of a stack of at least one locking element containing locking stops and groove sections and at least one intermediate element containing only groove sections.