Abstract: A truck design for a skate-type device involving turning and tilting axes or rotation embodied in the form of a T-shaped rod, the top part being housed in a base plate, and the leg passing through a slot in the base plate, a resilient pad, washers, an axle yoke, and an adjustable lock nut. Steering action occurs as the axle yoke pivots around the T-rod leg, and the rotation of the yoke in respect to board and base plate tilt is governed by transmitting rotation about the tilting axis to rotation about the turning axis by means of a rounded end of an axle yoke extension which fits into a slot in the base plate extension. As the board is tilted, the base plate extension is tilted sideways with respect to the still-vertical T-rod leg, pushing the axle yoke extension sideways to steer the axle like a wagon yoke. In one form of the invention, coupled action between front and rear trucks is provided by joining the respective T-rod legs either in a unitary structure or by a telescoping contruction.