Patent ID: 6902045

Claim:
A vehicle suspension system comprising: a damper having a lower mount end and an upper mount end; a spring having a lower end and an upper end, the spring positioned around the damper, the spring and the damper having a common central axis; an adjustment assembly operably attached at the lower mount end of the damper and supporting the lower end of the spring, the adjustment assembly comprising a housing; a ring gear positioned within and supporting the housing, the ring gear having a worm threaded outer surface and a threaded inner surface; a sleeve including a threaded outer portion engaged with the threaded inner surface of the ring gear; an adjuster rod including a threaded portion and a non-threaded portion, the threaded portion for engaging with the worm threaded outer surface of the ring gear, wherein rotation of the adjuster rod laterally moves the ring gear with respect to the sleeve, within the housing; a sleeve support positioned at one end of the sleeve to hold the sleeve within the housing; and a retaining ring positioned within a groove in the damper to anchor the sleeve support to the damper, wherein movement of the adjustment assembly in a first direction lengthens the spring and movement of the adjustment assembly in a second direction shortens the spring.