Patent ID: 6991057

Claim:
A snowmobile, comprising: a vehicle body frame; at least one slide rail disposed below the vehicle body frame; an extendable member capable of being extended and contracted within a prescribed range; a front torque arm having a plurality of coupling locations, the front torque arm being coupled with the vehicle body frame at an upper front coupling location, the front torque arm being coupled with the extendable member at a lower front coupling location located generally below the upper front coupling location, the front torque arm being coupled with the at least one slide rail at an intermediate front coupling location located generally below the upper front coupling location and generally above the lower front coupling location; and a rear torque arm having a plurality of coupling locations, the rear torque arm being coupled with the vehicle body frame at an upper rear coupling location, the rear torque arm being coupled with the extendable member at a lower rear coupling location located generally below the upper rear coupling location, the rear torque arm being coupled with the at least one slide rail; wherein the vehicle body frame, the front torque arm, the rear torque arm, and the extendable member define a four-node linkage that provides for the vertical distance between the vehicle body frame and the at least one slide rail to vary.