Abstract: An independent suspension system for a vehicle includes a pair of wheel-supporting axle beams extending in oblique relationships to longitudinally-extending opposite sides of the vehicle chassis which permit independent vertical pivotal movements of the axle beams that allow extended ranges of vertical travel of the vehicle wheels supported on one ends of the axle beams, a pair of radius arms pivotally connected at opposite ends to the chassis sides and to the one ends of the axle beams adjacent to their connections to the wheels so as to control fore and aft movement of the axle beams during their vertical pivotal movements and to maintain the wheels close to true vertical alignment with a vertical reference over their extended range of vertical travel, a pair of torque links pivotally interconnected at opposite ends to the chassis sides and other ends of the axle beams to counteract rotational forces introduced to the axle beams by the acceleration and braking of the vehicle, and a pair of air bags disposed

Abstract: An axial flow combine rotor has an exterior surface, a checkerboard pattern of multiple spaced-apart attachment sites, and a checkerboard pattern of multiple spaced-apart threshing elements in criss-crossing helical rows defining continuous helical criss-crossing paths extending from an entry end to a discharge end of the rotor. The axial flow rotor additionally incorporates helical threshing extension members in its forward threshing area which are substituted for, and occupy the locations of, at least pairs of single-sited threshing elements on the rotor. The extension members are installed in pairs in order to maintain rotor balance. Each extension member replaces at least two of the original single-sited threshing elements of the checkerboard pattern. Each of the helical threshing extension members is installed in one of the helical rows in the forward threshing area of the rotor, connected to and spanning between at least a pair of the multiple spaced attachment sites.