there are some law of physcics that come into play, one of them is the law that says for every action there is a equal and opposite reaction The drive shaft rotates clockwise looking from the front of the car,or CCWlooking from the rear of the car driving the left side(drivers) tire into the ground, the right side of the axle gets lifted up allowing it let the passenger side tire spin, if it is not a spool. That also transfer energy to the left front at the same time When the leaf spring is hit with the accelertion and twisting of the axles and housing it trys to lift the back of the car up, which helps lift the front up at the same time. A good set of sub frame connectors will help do all of that better BTW, you may or may not see a measurable difference in 60 ft times,but I would look real closley at the reaction times before and after