And then reinstalling require holding crankshaft still until you torque to 55 ft-lbs. Don't to make sure the antirotation bracket is place or you can destroy thee clutch. On the Double D spacer (if present) depending if it is recessed or not, it might require A Double D tool (there is at least four different sizes of D's so I got two tools at my disposal) or at least that is what I use to hold these Double D's otherwise it is a large flat blade screw driver in the flywheel ring gear while trying reach around the frame to torque the retaining screw..