An endless track suspension is comprised of a suspension support beam having an idler wheel assembly connected to a respective one of opposed ends thereof. At least one of the idler wheel assemblies has an endless track binding mechanism. Support wheels are secured to the suspension support beam and project from a lower face thereof. A drive sprocket is secured elevated above the suspension support beam by a support arm. The drive sprocket is secured to a vehicle drive axle by a coupling ring. The drive sprocket, the support wheels and idler wheels constitute an endless track support assembly for supporting an endless track in drivable engagement thereabout. A flexible connection of the drive sprocket support arm and the support wheels absorbs shocks and vibrations transmitted to the vehicle drive axle by the displacement of the endless track over a rough ground surface.