Abstract: The background disclosure is of a somewhat typical tandem-axle vehicle suspension, especially for motor trucks, made up of a pair of spring-supported, fore-and-aft walking beams and a pair of transverse rear axles. The improvement resides in structure interconnecting the axle housing and walking beams to provide for fore-and-aft adjustment of the axle housing relative to each other and to the walking beams so as to assure or at least approach parallelism of the axle housing with respect to each other and perpendicularity thereof to the vehicle fore-and-aft centerline. Each end of each walking beam is connected to its associated axle housing portion by a pair of relatively angularly cooperative members of circular configuration but having eccentric axes so that when one member is turned relative to the other, the fore-and-aft relationship of the adjusted axle housing changes.

Abstract: Disclosed is automotive frame and body correcting equipment having a main bed or frame for supporting a motor vehicle while correcting operations are performed. The underside of the bed has a rectilinear track therein about which one or more correcting accessories may be selectively positioned. Such accessory, here in the form of a pulling tower, is equipped with rollers for riding over the bed, and the tower is further moved inwardly and outwardly generally crosswise of the track and is capable of being positioned at various angles about a vertical pivot. The tower has a base that follows the track and an upright tower part that is selectively adjustable among several positions angularly spaced about a horizontal axis, whereby the versatility of the equipment is improved.