Patent ID: 11970033
Assignee: UNIVERSAL AIR, INC.
Field: Transport (Mechanical engineering)
Classification: CPC B | IPC B

Claim 13:
14. A method of replacing a leaf spring suspension system of a vehicle, comprising
removing a leaf spring from a first frame mount disposed forwardly of a vehicle axle and from a second frame mount disposed rearwardly of the vehicle axle;
attaching a first connector of a linkage assembly to the first frame mount;
attaching a second connector of a linkage assembly to the second frame mount;
the linkage assembly comprising a first link that is pivotably connected to a second link, and a gas spring that is interposed between the first link and second link; and
attaching the vehicle axle to the linkage assembly so that as the vehicle axle moves generally vertically, the first link moves relative to the second link and a load is applied to the gas spring;
wherein the first link comprises a first arm and a second arm that are connected to a connector portion, and the axle is attached to the connector portion so that a differential attached to the axle has an input shaft disposed at a first angle, and additionally comprising changing a length of the second arm so that the connector portion rotates about an end of the first arm and the first angle of the input shaft changes.