An adjustable spring mounting assembly includes an adjustment plate, including a receiver, an elongated axle alignment slot and at least one height adjustment aperture, and an alignment correction insert received and held in said receiver. The alignment correction insert includes a plurality of alignment correction apertures wherein a selected one of the plurality of alignment apertures is aligned with the elongated axle alignment slot to correct axle alignment of the vehicle.

A torsion spring assembly for a wheel suspension of a motor vehicle, including two torsion bars arranged coaxially one inside another and also a spring element, which is arranged axially-parallel to the two coaxial torsion bars, and can be mounted on the motor vehicle body via a bearing position, wherein the radial outer hollow-cylindrical torsion bar can be mounted on the motor vehicle body side and is connected in a rotationally-fixed manner to an output lever fastenable on a wheel guiding element and the radial inner torsion bar is connected in a rotationally-fixed manner to the outer torsion bar and is connected in a rotationally-fixed manner via a coupling to the spring element.

A torsion spring arrangement for a wheel suspension of a motor vehicle, including two torsion bars arranged coaxially one inside another and also a spring element, which is arranged axially-parallel to the two coaxial torsion bars and can be mounted on the motor vehicle body via a bearing position, wherein the radial outer hollow-cylindrical torsion bar can be mounted on the motor vehicle body side and is connected in a rotationally-fixed manner to an output lever fastenable on a wheel guiding element and the radial inner torsion bar is connected in a rotationally-fixed manner to the outer torsion bar and is connected in a rotationally-fixed manner via a coupling to the spring element.

A method and apparatus for lowering the height of a wheeled vehicle for cargo height constraints during transportation. The rear leaf spring shackle on each side of the vehicle is connected to a sliding frame mount. In the transport configuration, fasteners are removed from the sliding frame mount, and the mount slides forward, rotating the rear leaf spring shackle from a near vertical to a near horizontal position, effectively lowering the height of the vehicle. To return the vehicle to the ride configuration, a screw jack member is attached to the sliding frame mount and a rear attachment point on the vehicle, pulling the sliding frame mount back, aligning attachment points of the mount with the frame member in the original position. The fasteners are reinstalled to lock the sliding frame mount into the ride configuration.

A bearing eye for a leaf spring for sprung support of a vehicle component on a vehicle body of a vehicle may include a through opening and a torsion spring therein, and a first catch. The bearing eye may provide pivotable mounting of the leaf spring on the vehicle body. The torsion spring is twistable relative to the bearing eye and connectable non-rotatably to the vehicle body. The first catch may project radially inwardly into the through opening, and the torsion spring has a second catch that projects radially outwardly into the through opening. The first and second catches may form a locking engagement which, depending on a degree of relative twisting between the bearing eye and the torsion spring, stops the relative twisting.

A suspension system for a vehicle includes a first chassis rail and a second chassis rail, each extending longitudinally in an axial direction of the vehicle. Also included is a first leaf spring element extending longitudinally in the axial direction of the vehicle, the first leaf spring element operatively coupled proximate ends thereof to the first chassis rail and at an intermediate location to an axle assembly of the vehicle. Further included is a second leaf spring element extending longitudinally in the axial direction of the vehicle, the second leaf spring element operatively coupled proximate ends thereof to the second chassis rail and at an intermediate location to the axle assembly of the vehicle. Yet further included is at least one leaf spring extending in a transverse direction of the vehicle, the at least one leaf spring having a spring rate that is actively variable.

A motor vehicle multi-link axle having wheel suspension including a lower transverse link and an upper transverse link. A leaf spring extending transversely to a direction of travel of the vehicle and below the upper transverse link. A link element connects an end of the leaf spring to the upper transverse link. The link element having a first connection, connected to the upper transverse link, and a second connection, connected to the leaf spring. The link element adjustable to vary the distance between the first connection and the second connection. The multi-link axle may also include a connecting element that connects the second connection point of the link element to a connection point of the leaf spring, with the connecting adjustable to vary the distance between the second connection point of the link element and the connection point of the connecting element to the leaf spring.

A suspension system includes a leaf spring, an actuator attached to the leaf spring, and an axle mount attached to the actuator. The actuator is disposed vertically between the leaf spring and the axle mount and is actuatable to change a distance between the leaf spring and the axle mount.

A torsion spring arrangement for a wheel suspension of a motor vehicle, including two torsion bars arranged coaxially one inside another and also a spring element, which is arranged axially-parallel to the two coaxial torsion bars and can be mounted on the motor vehicle body via a bearing position, wherein the radial outer hollow-cylindrical torsion bar can be mounted on the motor vehicle body side and is connected in a rotationally-fixed manner to an output lever fastenable on a wheel guiding element and the radial inner torsion bar is connected in a rotationally-fixed manner to the outer torsion bar and is connected in a rotationally-fixed manner via a coupling to the spring element.

An electrically controlled suspension includes a first spring with a first end and a second end, where the first end of the first spring is connectable to a forward frame bracket of a frame of a vehicle and where the second end of the first spring is connectable to a rear frame bracket of the frame of the vehicle via a rear spring support. The suspension includes a second spring with a first end and a second end, where the second end of the second spring is connected to the second end of the first spring. An electrically operated suspension control actuator is provided where the first end of the second spring is connected to the electrically operated suspension control actuator.