<p>A vehicle landing leg comprising upper and lower portions telescopically fitting together for movement between an extended state in which when fitted to a vehicle the lower portion makes ground contact and a retracted state in which when fitted to a vehicle the lower portion is above ground. Actuating is provided means for effecting movement of the lower portion between extended and retracted states and in embodiments is a first pneumatic ram. Latching means is pivotally secured to the upper portion and is engageable through an opening in the upper portion with the top of the lower portion to maintain the leg in its extended state and with a keep located towards the lower end of the lower portion to maintain the leg in its retracted state. A second pneumatic ram having a line of action generally parallel to that of the leg is provided for movement of the latching means between engaged and released states. A pair of the legs may be fitted to a semi-trailer vehicle and that vehicle may be coupled to an air suspension which can lift or lower the front of the semi-trailer to adjust the height of a front end thereof.</p>
