When the engine of your vehicle starts to crank up, some forms of movement and sound are produced. The problem with the sound can be resolved through the use of deadening materials to reduce its volume. Vibration is also a form of movement that is created when the crankshaft starts to rotate. This is sometimes called as the torsional vibration and arises from the twisting of the crankshaft. The twisting cannot be avoided since the crankshaft absorbs the largest part of the power created by the engine. The absorbed power causes the front end of the shaft to move ahead of the end, resulting to a twisting motion. When power is removed, the crankshaft would unwind and snap back. The twisting and snapping cause the torsional vibration of the engine and this may damage the engine and the other parts of your vehicle if not properly regulated. The installation of the Dorman harmonic balancer will reduce torsional vibration. This can be found in the front end of the crankshaft and appears like a pulley that is composed of three parts - a steel inner part that is connected to the crankshaft, a steel outer part that has grooves for the belt, and a rubber disk or spring-loaded friction discs. The rubber disk ends up being twisted instead of the crankshaft. When it is about time to replace the stock harmonic balancer of your vehicle, be sure to get one in our web store if you want quality with an affordable price.