An equalizing suspension arrangement for tandem steering axles. An extended shackle is provided for supporting the forward end of the rear spring (that is the spring supporting the rear steering axle), and this extended shackle is connected at one end to the rear end of a rocker beam which connects the front spring and rear spring. A radius arm pivoted on the frame of the truck is connected to the opposite end of the extended shackle. As a result of this construction the movement of the rocker beam and of the radius arm are coordinated so that the point of connection of the front end of the rear spring to the extended shackle moves along a substantially vertical path, and there is substantially no horizontal movement of the front support of the rear spring. Hence, there is substantially no horizontal movement of the rear steering axle and the toe-in and toe-out condition of the rear steering axle remains substantially the same as that of the front steering tandem axles.