Abstract: The specification herein discloses a tracking control system for a vehicle such as a snowmobile. Such a vehicle includes a chassis with at least one ride member, such as a ski. The tracking control system includes a suspension arm, a spindle, and a slide bar. The suspension arm extends outwardly from the chassis, the arm being pivotally secured to the chassis. The spindle is secured to an outward end of the suspension arm. The spindle has an upper end a lower end with the slide bar secured to the lower end. The slide bar is oriented generally transverse to the spindle and to a major axis of the ski. The ski is movably coupled to the slide bar and spring biased in a direction away from the chassis.

Abstract: A snowmobile track suspension is disclosed. The track suspension includes a chassis, a skid frame, a front arm, an idler arm, and a rear arm. The chassis includes a tunnel. The skid frame includes rails along which the track rides. The front arm has a forward end pivotally and slidably connected to the tunnel. The front arm also includes a rearward end pivotally connected to the rails. The idler arm includes a forward end pivotally connected to the tunnel and a rearward end connected to the rear arm. Such connection is at the upper end of the rear arm, with the lower end of the rear arm pivotally coupled to the rails.