A track suspension means for vehicles having endless track drive and support surfaces, the vehicle having frame means with forward and rear mounting points. The track suspension means which is coupled to the vehicle at the mounting points includes longitudinally flexible leaf spring means, the leaf spring means having an axis disposed generally parallel to the track axis, and being adapted to flex vertically. The leaf spring, which carries a plurality of supporting means for the track, is secured at its forward end to the vehicle frame at the forward mounting point. The endless track suspension means includes forwardly and rearwardly disposed sprockets inscribed within the endless track, and mounting means are provided for the sprockets including mounting shafts. Track propelling means are coupled to the forwardly disposed sprockets, and track tensioning means and the rear of said leaf spring are operatively coupled to the rearwardly disposed sprockets. Pivot linkage means are provided for coupling the rear sprocket mounting means to the vehicle at the rear mounting point. The pivot linkage means includes a first arm pivotally coupled to the vehicle mounting point and with a floating pivot shaft journaled to the other end of the first arm. A second arm is provided having one end journaled to the floating pivot, and with the other end coupled to the rear sprocket mounting means. Resilient spring bias means are coupled to the second arm and normally urge the mounting shaft means for the rearwardly disposed sprockets in a direction toward the lower span of the endless track.