Wheelies are the action required to break the sled free of traction to pull it. The armthrow helps throw your body weight back to get a better wheelie. A welded diff isn’t optimal, and will prevent from ise of individual brakes, and make you run out of bounds. #tractorpulling #tractor #wheelie #cementpulling #johndeere @jacob.spiess5 | Spiess Pulling Team