A suspension system for a land vehicle is provided with at least one actuator connected to a chassis and an axle of a land vehicle spaced apart from a pivotal connection of the axle. A suspension circuit is in cooperation with the at least one actuator. A controller is in operable communication with the suspension circuit and is programmed to receive input indicative of a travel speed of the land vehicle. The suspension circuit is closed at a low speed travel range to permit the axle to pivot in response to variations in an underlying support surface. The suspension circuit is opened to permit selective actuation of the at least one actuator at a higher speed travel range in response to variations in the underlying support surface.

An expandable car jack including a base with a first base extension member and a second extension member rotatably, removably, and directly coupled to one another, the first and second base extension members operably configured to rotate with respect to one another to define a planar lower support surface forming an x-shape or a substantially perpendicular configuration. The expandable car jack may also include a plurality of hinged members supported by the base, wherein the plurality of hinged members define a lifting surface and are coupled together with a screw, the screw operably configured to rotate, expand and contract a width separating the plurality of hinged members, and place the lifting surface at a plurality of raised height positions.

An expandable car jack including a base with a first base extension member and a second extension member rotatably, removably, and directly coupled to one another, the first and second base extension members operably configured to rotate with respect to one another to define a planar lower support surface forming an x-shape or a substantially perpendicular configuration. The expandable car jack may also include a plurality of hinged members supported by the base, wherein the plurality of hinged members define a lifting surface and are coupled together with a screw, the screw operably configured to rotate, expand and contract a width separating the plurality of hinged members, and place the lifting surface at a plurality of raised height positions.

In an example, an adaptor for a lift jack may include a first section having an opening to receive a ring attached to a vehicle and a second section connected to the first section, in which the second section includes a space to receive a runner support of a lift jack runner. The adaptor may also include a locking hook rotatably connected to the second section, in which the locking hook is to latch onto the ring when the runner support is inserted into the space in the second section.

In an example, an adaptor for a lift jack may include a first section having an opening to receive a ring attached to a vehicle and a second section connected to the first section, in which the second section includes a space to receive a runner support of a lift jack runner. The adaptor may also include a locking hook rotatably connected to the second section, in which the locking hook is to latch onto the ring when the runner support is inserted into the space in the second section.

A tool for disassembling and assembling bearings which support an engine mounting frame of an internal combustion engine, is mounted on a base, a bearing having opposing metal securing plates and a resiliently deformable damping element extending between the securing plates, said tool comprising opposing, parallel mounting plates, each mounting plate being mountable on a securing plate of a bearing to be dissassembled or assembled, and comprising a turnbuckle, via which the opposing mounting plates are operatively connected.

Embodiments in the present description are provided for a lever adapter device for use in lifting a vehicle or other heavy objects. The lever adapter device includes stabilizing feet and one or more support legs. Each one of the stabilizing feet is attached to an end of each support leg. The lever adapter device further includes a hinge disposed at an end of each support leg. Each support leg is extendable and retractable towards or away from the other support leg. The lever adapter device further includes a jack attachment piece and one or more hinges, which are also connected to the one or more support legs. The jack attachment piece is configured to be removably connected to a jack, such as a HI-LIFT jack, or to other lifting devices to assist in lifting the vehicle or the other heavy objects.

Embodiments in the present description are provided for a lever adapter device for use in lifting a vehicle or other heavy objects. The lever adapter device includes stabilizing feet and one or more support legs. Each one of the stabilizing feet is attached to an end of each support leg. The lever adapter device further includes a hinge disposed at an end of each support leg. Each support leg is extendable and retractable towards or away from the other support leg. The lever adapter device further includes a jack attachment piece and one or more hinges, which are also connected to the one or more support legs. The jack attachment piece is configured to be removably connected to a jack, such as a HI-LIFT jack, or to other lifting devices to assist in lifting the vehicle or the other heavy objects.

A multiple speed jack handle system has a handle, an elongated rod, and a jack. The handle extends vertically from a first end to a first elbow, from the first elbow horizontally along a shaft to a second elbow and then vertically from the second elbow to a second knob. A first knob is connected to the shaft between the first and second elbows.

A multiple speed jack handle system has a handle, an elongated rod, and a jack. The handle extends vertically from a first end to a first elbow, from the first elbow horizontally along a shaft to a second elbow and then vertically from the second elbow to a second knob. A first knob is connected to the shaft between the first and second elbows.