Abstract: A self-steering tandem bogie for the rear of an articulated vehicle. The bogie comprises a front and a rear axle which are universally attached to a pair of longitudinally extending walking beams for sliding motion thereon, affording angular variation of the axles during vehicle turning. The load of the vehicle is transferred to the bogie by a steering unit which is universally attached to the walking beams between the two axles. As the vehicle executes a turn, the steering unit rotates in the direction of vehicle turn, while the walking beams tend to maintain the straight-drive orientation. This relative movement between the steering unit and the walking beams is transmitted to the front axle by a pair of steering arms, causing the front axle to rotate in the direction of turn, and thereby facilitating vehicle turning.