The SP Tools/Schley Products Dodge Harmonic Damper Pulley Puller, No. 13450, aids in the removal of the harmonic damper pulleys found on the Dodge 5.7L and 3.5L engines. The space allowed to insert the puller leg through the pulley is too small for a conventional universal puller to work without grinding away all of its strength. Then it still may not have the correct geometry to stay on the puller landings cast into the back side of the pulley. The 13450 has a slender design to fit the small windows in the pulley, and its geometry increases the bite of the leg to the pulley as it is tightened.