an improved traction with automatic operation of the undercarriage system into terrain to various terrain including amphibiously having a resilient chainlink chasis fig . 1 of resilient metal or resilient plastic or resilient composite or the combination thereof employing a multitude of resilient traction penetrators fig . 3 chainlink side ends angled downward for greater traction fig . 22 resilient enlongated traction penetrator fig . 8 and 9 resilient flap traction penetrators fig . 37 and 38 with rubber traction pads capable to quick release and attach to chainlinks with optional pad materials the penetration assembles systems attach unto chainlink chasis the multiple penetrators work together simeoustaneously flexing or exstending and retracting automatically dictated by the combination of vehicle weight and temperment of terrain and the automation is manipulated in combination with resilient technology principals and resilient roller wheels activater and diactivator fig . 23 and 26 and 49 figure links adaptable unto rubber wheel assemblies