Flywheel Locking Tool with 36mm 3/4’’ Socket for 6.6L Duramax

36mm Socket — Use 36mm 12 point socket with 3/4″ square drive to remove harmonic balancer bolt and re-torque on installation. 36mm 12 point socket can also be used on axle. Benefits — Locks flywheel in place when removing harmonic balancer on 6.6L Duramax engines with Allison automatic transmissions.