A vehicle suspension cage is provided and more particularly a dirt track racing rear axle birdcage style cage having features facilitating rapid suspension tuning and adjustment typically experienced during competitive events to accommodate varying track and handling conditions. A particular advantage is that adjustment of the suspension cage is accomplished without unloading the suspension thereby eliminating lifting the vehicle off the ground or removing the vehicle weight from the suspension. A four-link dirt modified suspension cage configuration embodiment and method of adjustment is provided; however, the suspension cage is adaptable to a variety of configurations and embodiments.

A hydraulic shock absorber includes a piston, a damper tube, a suspension spring, a plunger, a jack chamber, a pump case, a pump piston, a screw shaft, and a drive unit. Both end surfaces of the pump piston in a reciprocating direction are a first end surface demarcating the pump chamber, and a second end surface demarcating the gas chamber, the second end surface having a screw hole into which the screw shaft is screwed. The pump piston includes a space portion between a bottom plate defining the first end surface and the screw hole. The screw shaft has a through-hole connecting the gas chamber with the space portion.

A chassis system for commercial vehicles includes a trailing arm and a plunger piston which are connected or can be connected to one another via a connecting region, the connecting region having an adjusting device which includes an engagement element and a guide element, and it being possible for the engagement element to be moved relative to the guide element in such a way that a displacement, in particular a translational movement, of the plunger piston relative to the trailing arm is made possible.

A modular electronic damping control system is described and includes a damping component located at a vehicle suspension location. The modular electronic damping control system also includes a control system configured to control the damping component, and determine the type of damping component present. Also, the control system is configured to automatically tune a vehicle's suspension based on the type of damping component present, and automatically monitor the damping component and determine when a change has been made to the damping component so that the control system can then automatically re-tune the vehicle's suspension based on the change to the damping component.

A wheel alignment mechanism having a control arm connector, which is adapted for connection to a vehicle suspension control arm positioned between a vehicle chassis and a vehicle wheel, and which has an elongate portion; an inner support frame having a first surface and a second surface on a side of the inner support frame opposing the first surface, the elongate portion of the control arm connector positioned against the first surface at a select one of a first set of plural mounting locations on the first surface, with the first set of plural mounting locations being disposed in a first direction; and an outer support frame adapted to receive a wheel mounting, the connector having a third surface, the second surface of the inner support frame being positioned against the third surface at a select one of a second set of plural mounting locations on the third surface, and with the second set of plural mounting locations being disposed in a second direction approximately perpendicular to the first direction. Means are provided for securing the control arm connector to the inner support frame and the inner support frame to the outer support frame.

The invention relates to a chassis component having a base face which extends in a base face plane and an aperture for the introduction of a fixing means and two retention elements which are arranged at opposite sides of the aperture for retaining an eccentric element, wherein the retention elements are formed integrally and in a materially engaging manner from the base face of the chassis component, wherein the retention elements are displaced out of the base face by mechanical processing. The chassis component affords a simple ability to be produced and an increased service life during operation.

A tandem axle assembly includes a first slipper spring and a second slipper spring. The two slipper springs are configured or oriented in series with the slipper ends of the two slipper springs oriented toward each other. A keeper for a tandem axle suspension assembly is also disclosed.

A strut bearing may help bear a strut on a vehicle body and set and adjust camber at the strut of a wheel suspension. The strut bearing may include a fixing means, a releasable clamping connection between the strut bearing and the vehicle body, a strut receiver, and an adjustment device. The adjustment device may comprise a sliding block with a guide element, a bearing plate with a guide element receiver forming a linear guide of the sliding block with the guide element together with the guide element receiver, and a clamping plate. The bearing and clamping plates and the sliding block may be arranged such that the sliding block is clamped between the bearing and clamping plates. The strut receiver may be arranged on the sliding block such that a position of the sliding block in the linear guide correlates with the setting of the camber at the strut.

The twist axle assembly includes a cross beam that extends along a length between opposite ends, and a pair of trailing arms are fixedly attached with the opposite ends. A spindle plate is fixedly attached with each of the trailing arms. For each spindle plate and trailing arm combination, the spindle plate and trailing arm are provided with cooperating orbital adjustment features which allow an orientation of the spindle plate relative to the trailing arm to be adjusted prior to the spindle plate being fixedly attached with the trailing arm for allowing preselection of a camber angle, a caster angle, and a toe angle for a wheel to be coupled with the spindle plate.

A method and apparatus are disclosed that assist a user in performing proper setup of a vehicle suspension. A user may utilize a device equipped with an image sensor to assist the user in proper setup of a vehicle suspension. The device executes an application that prompts the user for input and instructs the user to perform a number of steps for adjusting the suspension components. In one embodiment, the application does not communicate with sensors on the vehicle. In another embodiment, the application may communicate with various sensors located on the vehicle to provide feedback to the device during the setup routine. In one embodiment, the device may analyze a digital image of a suspension component to provide feedback about a physical characteristic of the component.