If you like to play in the seriously rough stuff then Crawl Ratio is something you nee to work on. Just plug in your numbers and see how your rig measures up. We included a place to put your Klune V or Doubler numbers. If you do not have one of these then just enter 1 in that box. Remember that automatics have a torque multiplication factor of around 2:1 or so. Their number can and will be lower than a stick.