An automatically adjustable axle stop of an agricultural combine (100) includes a sensor (222, 224) to sense the position of an extendible axle (200) supported on the chassis (214) of the agricultural combine (100) at a pivot coupling (206), the extendable axle (200) being configured to pivot about a longitudinal pivotal axis (208) with respect to the chassis (214), an electronic control unit (400) to read the sensor (222, 224), to calculate a stop position based at least on the sensor signal, and to control an axle oscillation stop (210, 212) in order to limit the range of pivoting of the extendible axle (200) about the pivotal axis (208).