For installation of heavy duty clutch components. Insert the tool into the flywheel pilot bearing and slide discs, center plate and clutch cover over the spline to position them prior to bolt up. For use on heavy duty single, two plate, push-pull, self adjusting and manual clutches. Each is constructed with a rugged center core of fiberglass-reinforced nylon. Part No. 5030 has a 1-3/4" O.D. and 1-1/4" pilot. Part No. 5029 has a 2" O.D. and 1-1/4" pilot.