Abstract: A dual mode stabilizer for primary use in conjunction with a backhoe loader or in conjunction with a backhoe attachment for a skid steer loader. The dual mode stabilizer includes a pair of base members rigidly fixable on opposite sides of the tractor proximate the backhoe. A stabilizer arm assembly engages the base member. The stabilizer arm assembly is piston actuated and includes an outrigger arm member, a sliding arm member pivotally connected to the outrigger arm member so as to limit movement of the outrigger arm member with respect to the sliding arm member to rotational movement about a first pivot point, a first locking mechanism for preventing rotational movement of the outrigger arm member. Movement of the sliding arm member within the base member is limited to axial movement. A second locking mechanism is provided between the base member and the sliding arm member to prevent axial movement of the sliding arm member within the base member.

Abstract: A stabilizing jack for vehicles comprises a pair of jack legs advanceable between retracted and extended positions by a single drive screw having left and right hand threaded sections which is mounted on a slide frame which is slidably mounted to and below a base frame. The base frame is securable to the frame of a vehicle such as a recreational vehicle for use in stabilizing the vehicle when parked. The drive screw has a screw follower or trunnion secured to each threaded section. Each leg is pivotally secured at a first end thereof to one of the screw followers. Struts or leg braces are pivotally connected at one end to each leg, medially thereof, and are pivotally connected at opposite ends to the base frame at the ends closest the respective leg.